44% discount
First Alert SMCO210V, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts, 1-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
$ 69.99
free delivery
14% discount
First Alert BRK Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 1-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
$ 51.99
free delivery
41% discount
Vilfet 5-in-1 Carbon Monoxide Detectors, Natural Gas Leak Detector, Plug-in & Battery Backup Portable Co Detector, Co Gas Temp Humidity Sensor, HD Display Screen Vilfet, 1-Pcs, Black
5-in-1 Detectors – Real-time monitoring of carbon monoxide(PPM), combustible gas (%LEL), temperature(°F), humidity(RH%) and Backup Battery.
$ 63.97
free delivery
40% discount
First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak Memory, Battery Operated, CO410 , White
Keep your family safe with this easy to use digital display, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
$ 57.99
free delivery
40% discount
Carbon Monoxide Detectors Plug in 5-in-1 Natural Gas & Smoke Alarm with LCD Display, Monitors CO, Gas, Smoke, Temp & Humidity, Portable CO Detector Backup Battery for Home/RV/Office 1-PCS
【5-in-1 Advanced Detection with Real-Time Data】:The 5-in-1 carbon monoxide detectors plug in detector monitors CO, combustible gas, smoke, temperature, and humidity simultaneously. This CO alarm features a high-definition screen that displays dynamic data, refreshing every 2 seconds for quick and accurate readings.Equipped with dual sensors and dual alarm functions, it can issue alarms quickly and accurately.
$ 59.99
free delivery
Kidde Smart Smoke and Carbon Monoxide Detector, Ring App Enabled for Real-Time Notifications, Hardwired Alarm, AA Backup Battery
Double the Detection: Alerts you to both smoke and carbon monoxide (CO)
free delivery
38% discount
Extech CO100 Air Quality Carbon Dioxide Monitor
Checks for Carbon Dioxide (CO2) concentrations
$ 184.00
free delivery
SimpliSafe Smoke & Carbon Monoxide Detector
Instant alerts - even when you’re not home - Get alerted to dangerous levels of smoke or CO in your home in real time on your phone with the SimpliSafe app.
free delivery
First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm, SMCO600NV-AC, 1-Pack
Compatible with Google's Nest Protect Alarm
free delivery
37% discount
Extech CO250 Portable Indoor Air Quality CO2 Meter with Datalogger - Carbon Dioxide, Temperature, Humidity, Dew Point, Wet Bulb, NDIR Sensor, 99 Record Storage, Large LCD Display
Accurate CO2 Monitoring - Measures carbon dioxide levels from 0 to 5,000 ppm using an advanced NDIR sensor for reliable indoor air quality testing
$ 479.00
free delivery
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators
Electrochemical sensor technology detects CO gas
free delivery
10% discount
First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector with Slim Profile Design, SMCO200, 1-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
$ 51.99
free delivery
36% discount
6 in 1 Carbon Monoxide Detectors & Smoke Detector, Natural Gas & Carbon Monoxide Detectors Plug in with Battery Backup, Fire & Smoke Alarm with Adjustable Sound Light Alarm Functions for Home/RV
【Multifunctional Gas, Smoke and Carbon Monoxide Detector】This multifunctional CO Detector has been upgraded with a MUTE/TEST button, three-level volume adjustment, and three-level brightness adjustment. It features audible and visual alarms with a quick response time, capable of detecting CO, smoke, and gas, while retaining multiple functions such as temperature and humidity. Its powerful performance and eight functions help enhance home safety.
$ 62.59
free delivery
Extech CO210 Air Quality Carbon Dioxide Data Logger
Monitors carbon dioxide (CO2) in the range of 0–9,999 ppm with indoor air quality indication (Good, Normal, Poor)
free delivery
First Alert SC5 Battery Smart Smoke & Carbon Monoxide Alarm, SMCO600NV, 1-Pack
Compatible with Google's Nest Protect Alarm
free delivery
Extech CO240 - Indoor Air Quality Meter - Handheld CO₂, Temperature, Humidity, Dew Point & Wet Bulb Monitor with Audible Alarm
Comprehensive Air Quality Monitoring - Measures CO2 concentration, air temperature, relative humidity, dew point, and wet bulb temperature for complete indoor environmental assessment.
34% discount
3 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen
Easy Installation: Can be installed in several minutes. Coming with screws and bracket. Powered by battery(included), it will not be affected by power outage. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery.
$ 60.99
free delivery
First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
free delivery
33% discount
SITERWELL Plug in Carbon Monoxide Detector 10 Year Battery, CO Alarm Detector with Electrochemical Sensor and Sound Warning, AC Powered Portable Carbon Monoxide Detector for Home Office Travel,4-Pack
HIGH ACCURACY: Equipped with an advanced electrochemical sensor, this detector accurately detects carbon monoxide levels, full protection for your family. Providing an audible warning in excess of 85 decibels.
$ 119.99
free delivery
25% discount
First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup, 1-Pack
First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
$ 39.99
free delivery
33% discount
U UNNI CO2 Monitor Carbon Dioxide Detector for Home, 3 Adjustable Volume for Alerts & 3 Adjustable Backlight, Photoacoustic Sensor for Temperature Humidity & Indoor Air Quality Monitor
CARBON DIOXIDE DETECTOR for HOME, SWITCH °C/°F – Great item for any home to monitor the weather and air quality! Real-time CO2 value, temperature and humidity, CO2 history chart, CO2 Concentration range, 3 Adjustable Volume for Alarm Setting & 3 Adjustable Backlight, Max/Min Data, Low battery indicator.
$ 59.99
free delivery
23% discount
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
$ 64.99
free delivery
First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White
Plastic
free delivery
30% discount
Amprobe CO2-100 Handheld Carbon Dioxide Meter
Handheld digital meter measures ambient level of carbon dioxide (CO2) to monitor indoor air quality and performance of heating, ventilation, and air-conditioning systems
$ 613.99
free delivery
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth
Carbon monoxide alarm operates on a 120V wired power source with a 9-Volt alkaline battery (included)
free delivery
Safe-T-Alert by MTI Industries 35-742-BR 35 Series Dual LP/CO Alarm - Flush Mount, Brown
power supply & current draw: 108 ma @ 12 vdc
free delivery
First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display , White
Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
free delivery
29% discount
4 Pack Combination Photoelectric Smoke Alarm and Carbon Monoxide Detector Battery Operated with Digital Display
【Alarm and LED Indication】 Smoke and carbon monoxide detector has a real-time smoke and CO concentration on LCD display, once smoke or CO reaches its dangerous level, sensitive carbon monoxide alarm will give out both sound alert and red LED flash alarm, sound will be louder than 85 decibels.
$ 85.99
free delivery
Safe T Alert - Dual LP/CO Alarm - Flush Mount Black - 35-742-BL
DUAL PROPANE & CO DETECTION – Patented Double-Duty Alarm upgrades your RV’s safety by combining Propane Gas and Carbon Monoxide detection in one unit. Replaces single 12V propane alarms without extra wiring or modifications.
free delivery
26% discount
3 Packs Plug in Explosive-Gas & Carbon-Monoxide-Detectors,Hembisen 4-in-1 Carbon Monoxide Alarm,Natural Gas Leak Detector with °F & Humidity 4 Sensors for Home,RV,Apartment
【3 Packs Upgrade Plug-in Combination Gas & Carbon Monoxide Detector】 Plug and play, easy to install, 4-in-1 sensor, real-time monitoring display and alarm.
$ 99.99
free delivery
Kidde Carbon Monoxide Detector, Plug-In with 9V Battery Backup, Digital Display, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
26% discount
NICGOL 4 in 1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)
NICGOL 4-in-1 Advanced Detection: This upgraded 4-in-1 gas & carbon monoxide detector combines sensors for natural gas, carbon monoxide, temperature, and humidity in a single compact device. Features dual sensors and dual alarms for fast, accurate alerts. Detects CO, coal gas, and more.
$ 49.97
free delivery
29% discount
FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
Keep your family safe with this 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
$ 209.99
free delivery
26% discount
5-in-1 Combination Explosive Gas & Carbon Monoxide Detector,AC-Plug-in Natural Gas,Propane&CO Alarm with Adjustable Volume & Brightness,Battery Backup,Temperature(°F)&Humidity Sensor for Home,RV,Hotel
Hembisen Latest Upgrade 5-in-1 Combination Explosive Gas Detector and Carbon Monoxide Detector with Backup 9V Battery Functionality. (9V battery not included)
$ 49.99
free delivery
24% discount
GasDoc DS-100PRO Portable CO & CO2 Detector for Travel, 4-in-1 Magnetic Carbon Monoxide and Carbon Dioxide Detector, Audible & Visual Alarm, 3-Day Standby, CO & CO2 Monitor for Home, Tent, RV
All-in-One CO & CO2 Detector: DS-100PRO detects carbon monoxide (0–1000 ppm), carbon dioxide (400–5000 ppm), temperature, and humidity. It triggers alarms at 50 ppm CO or 1500 ppm CO2, ensuring early warnings and all-round air quality protection
$ 59.99
free delivery
7% discount
Kidde Smoke and Carbon Monoxide Detector, Hardwired with 10-Year Battery Backup, LED Status Lights, Interconnected, 85 dB Alarm, 5 inches, 30CUA10, 1 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology engineered for over 25% faster smoke detection*; features an 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
$ 74.97
free delivery
22% discount
Carbon Monoxide Detectors and Natural Gas Detector, 4-in-1 Upgraded Carbon Monoxide Detectors Plug in, Gas Leak Detector with Dual Alarms, Temperature & Humidity Sensor for Home, RV, Black, 2 Packs
Four-in-one Function Detection: Carbon monoxide detector and natural gas detector in one, with sensors for CO, gas, temperature, and humidity. Dual sensors and alarms ensure fast, accurate alerts to protect family safety.
$ 80.99
free delivery
22% discount
Koabbit Explosive-Gas & Carbon-Monoxide-Detectors, Plug in Carbon Monoxide Alarm,Natural Gas Detector,4-in-1 Combustible Gas & CO Detector with Fahrenheit(°F) & Humidity for Home,RV,Apartment
【Koabbit 4-in-1 Upgraded Gas & Carbon Monoxide Detector】Designed with a large digital display, it detects and displays temperature, humidity,natural gas and carbon monoxide levels in real time for your peace of mind
$ 39.99
free delivery
6% discount
Kidde Smoke Detector & Carbon Monoxide Detector Combo with 10-Year Battery,White
2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
$ 52.94
free delivery
20% discount
2 Packs Combination Natural-Gas and Carbon-Monoxide-Detector,Koabbit 4-in-1 CO/LPG/LNG Explosive Gas Detector Alarm with Temperature(°F) & Humidity for Home,RV,Hotel,Apartment
【Koabbit 4-in-1 Upgraded Gas & Carbon Monoxide Detector】Designed with a large digital display, it detects and displays temperature, humidity,natural gas and carbon monoxide levels in real time for your peace of mind
$ 69.99
free delivery
21% discount
Kidde Ultra-Sensitive Carbon Monoxide Detector for Pets, Health, or Medical Conditions, Battery Powered with Digital Display, UNIT
Electrochemical sensor will detect low levels of CO (below 30 PPM) for family members or pets, specifically those who have medical conditions
$ 101.42
free delivery
20% discount
SUNPOW 6-in-1 Carbon Monoxide Detectors Plug in, Natural Gas Leak Detector with Smoke Alarm and Battery Backup, Combustible Gas Sniffer with Temp & Humidity Monitor for Home/RV/Travel
6-IN-1 PROFESSIONAL PROTECTION: Combines carbon monoxide detection, natural gas leak detection, combustible gas detection, smoke monitoring, temperature tracking, and humidity sensing + battery backup in one powerful device. See everything that matters for home safety! Saves space and money versus multiple detectors.
$ 49.99
free delivery
20% discount
Portable Carbon Monoxide Detector for Travel, 300H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV (Green)
3-in-1 Portable Safety Monitor: Continuously detects dangerous Carbon Monoxide (CO) levels (0-1000 ppm ±5ppm), tracks ambient Temperature (-10°C to 55°C ±2%), and monitors Humidity (0-100% RH ±2%) – essential protection in one compact device.
$ 49.99
free delivery
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack
2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
free delivery
20% discount
Portable Carbon Monoxide Detector for Travel, 300H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV (Dark Green)
3-in-1 Portable Safety Monitor: Continuously detects dangerous Carbon Monoxide (CO) levels (0-1000 ppm ±5ppm), tracks ambient Temperature (-10°C to 55°C ±2%), and monitors Humidity (0-100% RH ±2%) – essential protection in one compact device.
$ 49.99
free delivery
18% discount
Smoke and Carbon Monoxide Detector, 2 in 1 Smoke Detector, LED Warning Light Indicators, 10 Year Battery (White), 4 Pack
2-in-1: 360° highly sensitive chip, this combination smoke and carbon monoxide detector can detect the threat of these two gases. Not single-function carbon monoxide detectors or smoke detector
$ 99.99
free delivery
First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup
Superior carbon monoxide sensor and dual ionization smoke alarm
free delivery
18% discount
4-in-1 Natural Gas Leak Detector & Carbon Monoxide Detectors with Natural, Propane, Co & Gas Leak Detector - Carbon Monoxide Detectors Plug in -Temperature & Humidity Detectors for Home, RV (2 Packs)
【2 Packs 4-IN-1 Detection System】This enhanced 4-in-1 Natural Gas Leak Detector & Carbon Monoxide Detector combines natural gas detection, carbon monoxide sensing, temperature monitoring, and humidity measurement. Featuring dual-sensor technology and a reinforced alert mechanism, it delivers rapid environmental analysis and comprehensive protection for household security through multi-dimensional hazard prevention.
$ 84.97
free delivery
18% discount
Kidde Smoke and Carbon Monoxide Detector, AA Battery Powered with LED Status Lights, 85 dB Alarm, 5 inches, 30CUDR, 1 Pack
2-in-1 DETECTION: Model 30CUDR detects both smoke and carbon monoxide and features advanced sensing technology with over 25% faster smoke detection*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes
$ 60.92
free delivery
18% discount
First Alert BRK SMICO110, 10-Year Battery Combination Smoke & Carbon Monoxide Alarm, 1-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
$ 49.99
free delivery
15% discount
2 Packs Gas & Carbon Monoxide Detectors - Plug in Carbon Monoxide Detector & Propane, Natural Gas Detector, CO Monitor Alarm & Explosive Gas Detector Alarm for Home,RV
【2 Packs Upgraded Combination Gas & Carbon Monoxide Detector】Plug-and-play, LCD digital display, easy to install.
$ 59.99
free delivery
14% discount
LFF CO2 Detector, 4-in-1 Wi-Fi Air Quality Monitor Gas Detector, Carbon Dioxide Detector, CO2 Monitor with Alarm, Temp, Humi and Time, Indoor Air Quality Monitor for Home, Kitchen, Room, Car
WI-FI CO2 DETECTOR WITH APP CONNECTION: The Wi-Fi CO2 monitor enables remote air quality monitoring via the Smart Life APP (2.4GHz Wi-Fi only). You can view current air quality readings, export historical data, and analyze trends over time.
$ 69.99
free delivery
15% discount
Kidde Carbon Monoxide Detector, 10-Year Battery Powered, Digital Display, LED Status Indicators, 85 dB Alarm, 3rd Edition
Electrochemical sensor technology detects CO gas & sounds an 85-decibel alarm
$ 52.97
free delivery
13% discount
Hembisen Combination Natural-Gas and Carbon-Monoxide-Detector Plug-in, 4 Sensors with Carbon Monoxide Alarm,°F & Humidity,Explosive Gas Detector Alarm for Home,RV,Apartment
【Hembisen Upgrade Plug-in Combination Gas & Carbon Monoxide Detector】 Plug and play, easy to install, 4-in-1 sensor, real-time monitoring display and alarm.
$ 39.99
free delivery
10% discount
Smoke and Carbon Monoxide Detector, 2-in-1 Photoelectric Carbon Monoxide Detectors Smoke Alarm with LED Indicator, Easy Installation for Home, Bedroom, RV, Garage
LCD Digital Display: The carbon monoxide and smoke detectors with LCD screen, Clearly indicate real-time carbon monoxide CO concentration in the surrounding air and working status of the alarm. To save power, the LCD display only shows the value when Carbon Monoxide or smoke is detected.
$ 45.98
free delivery
12% discount
Combination Gas & Carbon Monoxide Detectors - 3 Packs Plug in Carbon Monoxide Alarm & Natural Gas Detector for Home, 2-in-1 Co Detector & Combustible Gas Detector with Digital Display, Easy to Install
【Hembisen Plug in Gas & Carbon Monoxide Detector KH-522】This is a newly optimized 2-in-1 unplugged detector with a backup power feature so you can keep tabs on your home.
$ 81.99
free delivery
12% discount
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display - 2 Pack
Easy Installation - simply plug-in to a standard, 120V outlet in your home
$ 101.17
free delivery
First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
free delivery
Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, Voice Alerts, LED Warning Light Indicators, 2 Pack
2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
free delivery
10% discount
GasDoc DS-399PRO Carbon Monoxide and Carbon Dioxide Detectors, 4-in-1 Portable CO2 & CO Detector with Audible & Visual Alarm, Rechargeable CO & CO2 Meter for Home, Travel, Camping, Car, 72H Standby
4-in-1 CO & CO2 Detector: The DS-399PRO is a versatile 4-in-1 detector that measures carbon monoxide (CO) levels from 0 to 1000 PPM and carbon dioxide (CO2) levels from 400 to 5000 PPM. Whether at home or on the go, it ensures that the air you breathe is safe, protecting both you and your loved ones. Additionally, the detector monitors real-time temperature and humidity, providing you with environmental data, making it ideal for everyday use
$ 49.99
free delivery
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
Convenient adapter plugs makes it easy to replace existing hardwired alarms without needing to rewire
free delivery
9% discount
Kesymo Upgraded Smoke and Carbon Monoxide Detector 10-Year Lifespan, Dual Sensor Smoke Alarm & Carbon Monoxide Detector (3 Pack)
【Upgraded Dual Sensors, 10-Year Lifespan】 Equipped with advanced photoelectric smoke and electrochemical CO sensors, this 2-in-1 detector provides faster and more accurate alerts against smoke and carbon monoxide. Unlike ordinary alarms with only 3-year sensors, ours last up to 10 years, giving your home longer-lasting protection from two deadly threats.
$ 63.99
free delivery
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display, Certified to UL 217 9th Edition, Standalone Model SC07, 1-Pack
Please Note: SC07 is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for interconnection, search for SC07-W
free delivery
9% discount
4 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen
Easy Installation: Can be installed in several minutes. Coming with screws and bracket. Powered by battery(included), it will not be affected by power outage. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery.
$ 66.99
free delivery
10% discount
Kidde Carbon Monoxide Detector with 10-Year Battery, Digital Display, 3 LEDs, Replacement Indicator, Peak Level Memory, 2 Pack
Electrochemical sensor technology detects CO gas & sounds an 85-decibel alarm
$ 99.97
free delivery
Kidde Smoke and Carbon Monoxide Detector, AA Battery Powered with LED Status Lights, 85 dB Alarm, 5 inches, 30CUDR, 4 Pack
2-in-1 DETECTION: Model 30CUDR detects both smoke and carbon monoxide and features advanced sensing technology with over 25% faster smoke detection*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes
free delivery
5% discount
X-Sense Smoke Detector Carbon Monoxide Alarm Combo, 10-Year Non-Replaceable Battery, Not Hardwired, UL 217 & UL 2034 Certified, Model XP0H-SN, 1-Pack
Please Note: The XP0H-SN is a basic standalone unit; does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for an interconnected version, search for XP0H-WN
$ 39.99
free delivery
7% discount
RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Alarm with Separate LED Indicator Light, Metal Housing, 100dB Loud Alert, Flush Mount, Compatible Replacement for Safe-T-Alert 30-442 Series
2-IN-1 ALARM: The Briidea 2-in-1 alarm system, you'll receive early warnings that give you ample time to take precautionary measures and prevent any dangers, ensuring the safety of your and your family lives and property, allowing you to fully enjoy your travels. COMPATIBLE REPLACEMENT FOR SAFE-T-ALERT MTI INDUSTRIES 30-442 SERIES. Power Supply 12 VDC
$ 59.99
free delivery
Kidde Smoke and Carbon Monoxide Detector, Hardwired with AA Battery Backup, LED Status Lights, Interconnected, 85 dB Alarm, 5 inches, 30CUAR, 1 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology for over 25% faster smoke detection*; features a loud 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
free delivery
7% discount
AEGTEST AGT-2000 Portable Carbon Monoxide Detector for Travel, 240H Standby, CO Detector with Audible & Visual Alerts for Camping, Rechargeable CO Meter with Built-in Emergency Flashlight
Carbon Monoxide Detector: The AGT-2000 is a portable carbon monoxide detector with a high-sensitivity UK DDS sensor, delivering a rapid response time of up to 0.3 seconds. It accurately detects CO concentrations from 0 to 1000 PPM and continuously monitors environmental changes. Whether at home or on the go, it helps ensure the air you breathe remains safe, protecting you and your loved ones
$ 42.99
free delivery
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 4 Pack
2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
free delivery
7% discount
Kidde Smoke and Carbon Monoxide Detector, 10-Year Battery Powered, LED Status Lights, 85 dB Alarm, 5-inches, 30CUD10, 2 Pack
2-in-1 DETECTION: Model 30CUD10 detects both smoke and carbon monoxide with advanced sensing technology engineered with over 25% faster smoke detection*; features a red LED light for clear visual notification suitable for homes
$ 106.00
free delivery
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector, 10-Year Battery Powered Fire and CO Alarm, UL 217 9th Edition Certified, SC06-W, 6-Pack
Please Note: SC06-W supports wireless interconnection but does not have Wi-Fi
free delivery
Kidde Smart Smoke and Carbon Monoxide Detector, Ring App Enabled for Real-Time Notifications, Wire-Free Interconnectivity, AA Battery Powered
Double the Detection: Alerts you to both smoke and carbon monoxide (CO)
free delivery
6% discount
2 Packs Plug in Carbon Monoxide Detectors,4-in-1 Real-time Digital Display & Monitor,Combination Explosive Gas,Natural Gas Leak,Propane Detector & CO Alarm for Home,Camping,RV, Apartment
Upgraded 4-in-1 Sensor: Features high reliability, high sensitivity, and high accuracy
$ 44.09
free delivery
7% discount
Kidde Carbon Monoxide Detector, AA Battery Powered, Detects Low-Level CO, Digital Backlit Display, Portable for Travel or Home, LED Status Indicators, 85 dB Alarm, 5th Edition, COBDL
DETECTS CARBON MONOXIDE: Model COBDL monitors CO and sounds a loud 85 dB alarm to signal evacuation to fresh air; LED warning light indicates hazard; Test/Hush button allows quick checks or temporary silencing
$ 42.97
free delivery
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
HEIMAN Carbon Monoxide Detectors,Interconnected CO Detector 10 Year Battery Operated,UL Listed&UL 2034 5th Certified, Wireless Small Mini Portable CO Alarm for Home Travel Rvs/C1-R 3Pack
【Wireless Interconnected - Whole-Home Protection】 One Starts, All Sounds: No Wi-Fi required! The CO detector is different from traditional alarms; these devices "talk" to each other. When one alarm detects CO, every interconnected unit in your home will sound instantly(656 ft range/200 m). This ensures you hear the alert from any room, providing crucial extra seconds for your family to escape. (If you have Heiman other interconnected products, or a gateway, you can unify safety across rooms)
free delivery
6% discount
Kidde Smoke and Carbon Monoxide Detector, AA Battery Powered, with Voice Alerts, LED Status Lights, 85 dB Alarm, 5 inches, 30CUDR-V, 1 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology engineered for over 25% faster smoke detection*; features an 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
$ 75.00
free delivery
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective detector.
free delivery
New 2025 First Alert SMCO410 Z-Wave Battery-Powered Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, Single Pack, White
First Alert's Precision Detection advanced sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency. Provides reliable 2-in-1 detection against both smoke and carbon monoxide.
free delivery
First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location
Battery-operated carbon monoxide alarm can be installed easily
free delivery
First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup 2 Pack
Hardwired CO smoke alarm features battery backup for constant monitoring
free delivery
First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm - 3 Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
free delivery
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 2 Pack
2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective detector.
free delivery
Kidde Smoke and Carbon Monoxide Detector, Hardwired with 10-Year Battery Backup, Voice Alerts, LED Status Lights, Interconnected, 85 dB Alarm, 5 inches, 30CUA10-V, 1 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology engineered with over 25% faster smoke detection*; features a loud 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
free delivery
Kidde Smoke and Carbon Monoxide Detector, 10-Year Battery Powered, with Voice Alerts, LED Status Lights, 85 dB Alarm, 5 inches, 30CUD10-V, 1 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology for over 25% faster smoke detection*; features an 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
free delivery
Kesymo Upgraded Smoke and Carbon Monoxide Detector 10-Year Lifespan, Dual Sensor Smoke Alarm & Carbon Monoxide Detector (2 Pack)
【Upgraded Dual Sensors, 10-Year Lifespan】 Equipped with advanced photoelectric smoke and electrochemical CO sensors, this 2-in-1 detector provides faster and more accurate alerts against smoke and carbon monoxide. Unlike ordinary alarms with only 3-year sensors, ours last up to 10 years, giving your home longer-lasting protection from two deadly threats.
free delivery
Rechargeable CO2 Alarm Travel/Camping Carbon Dioxide Warning With Temperature/Humidity Display Portable CO2 Meter
Suitable for various, this CO2 detector is essential for anyone concerned about air Stay awares of potential carbon dioxide risks in different settings.
free delivery
First Alert CO606, Plug-In Carbon Monoxide (CO) Detector, Hardwired Alarm with Battery Backup, 3-Pack
Keep your family safe from carbon monoxide in multiple rooms with this convenient plug in carbon monoxide alarm 3 pack; The alarms work with any standard outlet and also have a battery backup for continuous monitoring of CO levels, even if there's a power failure
free delivery
Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery, Voice Alerts , 1 Count ( Pack of 1)
2 units in 1: unit alerts you to smoke & carbon monoxide by sounding a loud, 85-decibel alarm & sounding voice alerts
free delivery
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, Voice Alerts, LED Warning Light Indicators
2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
free delivery
5% discount
X-Sense Wireless Combination Smoke and Carbon Monoxide Detector, 10-Year Non-Replaceable Battery, Interconnected Up to 24 X-Sense Link+ Devices, UL 217 & UL 2034 Certified, Model XP0H-WN, 3-Pack
Please Note: XP0H-WN supports wireless interconnection but does not have Wi-Fi
$ 129.99
free delivery
Universal Security Instruments MCND401 M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
Large, Bright Digital Display Screen with Three LED Colors to Indicate Status of Power, Carbon Monoxide and Natural Gas
free delivery
Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack
2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
free delivery
Kidde KN-COB-B-LP Nighthawk Carbon Monoxide Alarm, Battery Operated - 21007268
Battery operated (three AAs included) to provide protection during power outages
free delivery
FIRST ALERT CO400-3 Carbon Monoxide Detector, Battery Operated, White , 3-Pack -CO400-3
Keep your family safe with this 3-Pack of easy to use, battery operated carbon monoxide alarms; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
free delivery
FIRST ALERT Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display, GCO1CN
Versatile CO alarm senses high levels of propane, natural/methane gas, and carbon monoxide
free delivery
Kidde Carbon Monoxide + Explosive Gas, Natural Gas & Propane Alarm, Plug-in with 9V Battery Backup, Digital Display, 85 dB Alarm, LED Status Indicators, 3rd Edition
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
5% discount
RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Detector with Separate LED Indicator Light, 100dB Loud Alarm, 12 VDC, Black
2-IN-1 ALARM: RV travel is an exciting adventure, but safety should never be overlooked.When using fuel equipment inside your RV, there are potential risks of carbon monoxide poisoning and propane gas leaks. With Briidea 2-in-1 alarm system, you'll receive early warnings that give you ample time to take precautionary measures and prevent any dangers, ensuring the safety of your and your family lives and property, allowing you to fully enjoy your travels. Power Supply 12 VDC
$ 57.99
free delivery
First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
Keep your family safe with this digital display, plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
free delivery
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display - 4 Pack
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)
Keep your family safe with this 2-pack of easy to use, battery operated carbon monoxide alarms; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
free delivery
Kidde 21010170 10 Year Smoke and Carbon Monoxide Alarm Detector | Photoelectric | Kitchen | Model P3010K-CO
Combination smoke and carbon monoxide alarm – Smoke and CO sensing technologies work together to detect real fires faster and reduce cooking-related nuisance alarms.
free delivery
X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, SC06
Please Note: SC06 is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for interconnection, search for SC06-W
free delivery
First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, Battery Operated, 1 Pack, White
The front cover design of the alarm may vary but product function remains the same.
free delivery
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
free delivery
Kidde Smart Carbon Monoxide Detector & Indoor Air Quality Monitor, Plug-In, WiFi, Alexa Compatible Device, Voice & App Alerts
Industry First: 2-in-1 Detection - Carbon monoxide detector & Indoor Air Quality Monitor combo alerts you to both CO & indoor air quality hazards, in a single device
free delivery
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 Pack
Item Package Dimension: 5.89L x 5.709W x 2.39H inches
free delivery
First Alert BRK SC9120B-6 Hardwired Smoke and Carbon Monoxide Detector (CO) with Battery Backup. 6-Pack , White
The First Alert Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup provides 2-in-1 protection from both types of dangers.
free delivery
5% discount
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack
BRK's Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning
$ 243.78
free delivery
Kidde Smoke and Carbon Monoxide Detector, 10-Year Battery Powered, LED Status Lights, 85 dB Alarm, 5-inches, 30CUD10, 1 Pack
2-in-1 DETECTION: Model 30CUD10 detects both smoke and carbon monoxide with advanced sensing technology engineered with over 25% faster smoke detection*; features a red LED light for clear visual notification suitable for homes
free delivery
Universal Security Instruments 10 Year Tamper Proof Permanent Power Sealed Battery Carbon Monoxide Smart Alarm with Display Screen, Model MCD305SB
Safety Alarms and Warnings
free delivery
Carbon Monoxide CO Meter by Forensics | USA NIST Calibration | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-1000 ppm |
ACCURATE: Carbon Monoxide (CO) gas detector, 0-1000ppm with 1ppm resolution. USA NIST Calibration.
free delivery
Kidde Smoke and Carbon Monoxide Detector, AA Battery Powered with LED Status Lights, 85 dB Alarm, 5 inches, 30CUDR, 3 Pack
2-in-1 DETECTION: Model 30CUDR detects both smoke and carbon monoxide and features advanced sensing technology with over 25% faster smoke detection*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes
free delivery
Yfwsrecinoe 2 Pack Upgraded Combination Smoke and Carbon Monoxide Alarm Detector, Dual Sensor Smoke Alarm&Carbon Monoxide Detector (Includes Battery)
【Upgraded Dual Sensors to Ensure Your Safety】: Compared with most carbon monoxide smoke detectors on the market, our detector sensors have a lifespan of up to 10 years, while other detectors on the market only use three-years life sensors, so our products have a longer service life. The combined smoke and carbon monoxide detector uses a photoelectric smoke sensor and an electrochemical sensor to detect smoke and carbon monoxide faster and more accurately, protecting your home from two potentially deadly threats.
free delivery
Kidde Carbon Monoxide Detector, AC-Plug-in with Lithium Battery Backup, Digital Display, Escape & Night Light
Easy installation - simply plug the CO detector into a 120-volt, 60Hz outlet in your home; the plug rotates for flexibility of placement
free delivery
6 Pack Smoke and Carbon Monoxide Detector with Test Button and Digital Display,2-in-1 Smoke Detector Carbon Monoxide Detector Combo with Batteries,Fire Alarm for Home
Carbon monoxide detector smoke alarm has photoelectrical and electrochemical sensors. They work separately, no matter which one reaches their dangerous concentraion, combination smoke carbon monoxide alarm detector will go off with red led flashing
free delivery
UTIVO Carbon Monoxide Detector with Plug-in 3-in-1 CO, Temperature and Humidity Monitor - Portable Smart Alarm with Digital Display, Battery Backup and Dual Alerts
Protect Your Family:Protect Your Family: This carbon monoxide detector offers real-time monitoring of CO, temperature, and humidity, helping prevent silent threats like gas leaks, propane, and methane exposure. Ideal for home, RV, camper, garage, or apartment, it’s a must-have for house essentials, traveling, and hotel safety.
free delivery
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
Kidde Smoke and Carbon Monoxide Detector, Hardwired with AA Battery Backup, LED Status Lights, Interconnected, 85 dB Alarm, 5 inches, 30CUAR, 3 Pack
2-IN-1 DETECTION: Detects both smoke and carbon monoxide with advanced sensing technology for over 25% faster smoke detection*; features a loud 85-decibel alarm with red LED light for clear visual and audible warnings; suitable for homes
free delivery
X-Sense Smoke Detector Carbon Monoxide Alarm Combo, 10-Year Non-Replaceable Battery, Not Hardwired, UL 217 & UL 2034 Certified, Model XP0H-SN, 3-Pack
Please Note: The XP0H-SN is a basic standalone unit; does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for an interconnected version, search for XP0H-WN
free delivery
Kidde Carbon Monoxide Detector, 10-Year Battery Powered, LED Status Indicators, 85 dB Alarm, 5th Edition, COB10
DETECTS CARBON MONOXIDE: Model COB10 monitors CO and sounds a loud 85-decibel alarm to signal evacuation to fresh air; LED warning light indicates hazard; test/hush button allows quick checks or temporary silencing; replaces model C3010
free delivery
WiFi Smart Natural Gas& Carbon Monoxide Detector, 2 in 1，Plug-in, CO Gas Leak Alarm for Natural Gas, LPG, Methane, Propane & Butane, App Monitoring & LED Display
2-in-1 Gas & CO Detector Detects carbon monoxide and combustible gases (Natural Gas, Methane, LPG, Propane, Butane) in one plug-in device for complete home and RV safety.
free delivery
5% discount
First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMICO100, 3-Pack
First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
$ 114.99
free delivery
5% discount
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, Rotating Plug, LED Status Light Indicators, 5th Edition, COP
DETECTS CARBON MONOXIDE: Model COP monitors CO levels & sounds a loud 85 dB alarm to signal evacuation; sleep peacefully with no nighttime chirps; LED warning light indicates hazard; Test/Hush button for quick checks
$ 36.97
free delivery
Portable Carbon Monoxide Detector for Travel, 3-in-1 CO Detector with Temperature & Humidity Sensor, Dual Audible & Visual Alarm Camping, RV and Hotel for Safety
3-in-1 Carbon Monoxide Detector: This device tracks and displays real-time carbon monoxide levels (0-1000 ppm), temperature (-10°C~50°C), and humidity (5%-95% RH) on a clear screen for comprehensive protection in RVs, hotels, or tents. Features a loud 85dB audible siren combined with a bright, flashing red strobe light, ensuring alerts are noticed both day and night for maximum safety
free delivery
Sensorcon Inspector Portable Carbon Monoxide Detector with Visual and Audio Alarms – Waterproof Digital CO Detector for Personal, Ambient, and Combustion Monitoring
Professional-Grade CO Detection: Equipped with advanced electrochemical sensor and proprietary embedded software, this portable carbon monoxide sensor (INS-CO-01) delivers accurate, reliable readings of CO concentrations in parts per million (ppm).
free delivery
5% discount
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, UL 217 & UL 2034 Certified, Model SC01, 1-Pack
10-Year Battery Smoke and CO Detector: Provides 10 years of continuous power with a built-in lithium battery; saves you from battery replacement
$ 39.99
free delivery
Car, Vehicle, Aircraft Carbon Monoxide CO Detector | Fast Low-Level 9ppm Alarm | Vehicles, Police, Pilots, Travel, Bus, Trucks | Metal Body, Small 2oz |
USES: Exhaust leaks in vehicles (i.e. SUVs, aircraft, school buses, trucks & fleet vehicles that triggers headaches, nausea & driver fatigue.
free delivery
HEIMAN Smart Carbon Monoxide Detectors, Wi-Fi Nano CO Alarm, UL 2034 5th Certified, Real-Time App Notifications, Battery Powered, Test-Reset Button, 10-Year Figaro Sensor, Portable for Trave, 5-Pack
【Triple-Certified Safety】: ETL Listed, UL2034 (the U.S. exclusive CO alarm standard), and FCC certifications, U.S. safety compliant,More reassuring for family use
free delivery
Protmex 4 in 1 Portable Carbon Monoxide Detector, Professional Rechargeable CO CO2 Detector Meter Air Quality Monitor with Magnetic Suction, RV Carbon Dioxide Detector Alarm Temp/Humidity Sensor
【High Precision 4 in 1 CO Detector】 The portable 4-in-1 carbon monoxide detector can monitor the current CO, CO2, temperature and humidity in the air in real time. Equipped with a high-precision sensor (10-year life), the detectable CO concentration range is 0~1000PPM, the CO2 concentration range is 400~5000PPM, and the temperature range is 14~122°F / -10~50°C, humidity range is 0~95%RH. The data is accurate without delay and monitored in real time.
free delivery
Air Quality Monitor Indoor 7" Display + Alerts, CO2 Monitor PM2.5 PM1.0 PM10 with TVOC Temperature Humidity Carbon Dioxide Detector for Home, Kitchen, Bedroom, Office, RV
Clear 7.48” Large Color Display – See Everything at a Glance. Our air quality monitor features a large, bright, and color-coded screen that is easy to read from across the room. It simultaneously displays real-time levels of CO2, PM2.5, PM1.0, PM10, TVOC, temperature, humidity, and date. No need to toggle or scroll through confusing menus. Three adjustable brightness ensures it’s clear in any light without being disruptive at night.
free delivery
Portable CO2 & Carbon Monoxide Detector for Travel, Rechargeable Monitor with Audible and Visual Alerts, Magnetic Back, USB-C, for Hotel, RV, Car & Camping
Gas & Climate Ranges: Detects CO 0–1000 ppm and CO2 0–5000 ppm; shows temperature -10°C to 55°C (14°F–131°F) and humidity 0–100% RH; carbon monoxide detectors readings displayed in ppm for indoor travel checks
free delivery
Kidde Smoke and Carbon Monoxide Detector, AA Battery-Powered, Wire-Free Interconnect, Voice Alerts, LED Status Light 85 dB Alarm, 5-inches, 30CUDR-VRF
2-IN-1 DETECTION WITH VOICE ALERTS: Model 30CUDR-VRF detects smoke and CO with advanced sensing technology for over 25% faster smoke detection*; announces "Fire" or "Warning, Carbon Monoxide" and sounds a loud 85-decibel alarm with red LED light
free delivery
Portable Carbon Monoxide Detector for Travel, 3-in-1 CO Detector with Temperature & Humidity Sensor, Dual Audible & Visual Alarm Camping, RV and Hotel for Safety (Silver)
3-in-1 Monitoring System: Device tracks and displays real-time carbon monoxide levels (0-1000 ppm), temperature (-10C50C), and humidity (5%-95% RH) on a clear screen for comprehensive protection in RVs, hotels, or tents
free delivery
Smoke & Carbon Monoxide Detector with Batteries, 2-in-1 CO Detector Alarm for Home, Garage, and RV with LCD Display Safety Alarm System, Audible and Visual Alert (3 Pack)
2-IN-1 PROTECTION: Dual-function detector continuously monitors both smoke and carbon monoxide levels in your home, providing comprehensive safety coverage with a single device
free delivery
Kidde Carbon Monoxide Detector, AA Battery Powered, Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition, 6 Pack
Electrochemical sensor technology detects CO gas
free delivery
Watcher-S1 Portable Carbon Monoxide Detector, 150H Standby, Rechargeable 3-in-1 CO Meter with Magnetic Suction, CO Detector with Audible & Visual Alarm for Home, Travel, Tent, RV
3-in-1 Portable Safety Detector: GuardStarX Watcher-S1 is a portable carbon monoxide detector offering real-time, accurate CO readings from 0–1000 ppm. Customizable alarm thresholds help you quickly detect potential risks, while integrated temperature and humidity monitoring keeps you informed of your home environment for everyday use
free delivery
Kidde Carbon Monoxide Detector, Plug In Wall with 10-Year Battery Backup, Digital LED Display, Test-Hush Button, 3rd Edition
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor with Relay Function 4.5m Cable NDIR Carbon Dioxide Sensor Probe for Grow Room, Plant, Grow Tent, Greenhouse, Garden, Indoor
Accurate NDIR CO2 sensor: Uses nondispersive infrared sensor (NDIR) technology for most precise and reliable CO2 measurements.
free delivery
INKBIRDPLUS Portable CO2 Detector, Mini Indoor CO2 Monitor, NDIR Sensor with Full Color LCD, for Home, Office, Travel (PTH-10C)
High-Quality CO2 Detector: This portable CO2 meter uses an advanced NDIR sensor to detect carbon dioxide through infrared sensing technology, with high precision, strong anti-interference and excellent stability
free delivery
5% discount
2 Packs Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm & Natural Gas Detector,Propane,Methane,with Backup 9V Battery Feature, Digital Display, for Home, Apartment, RV
【Combination Gas & Carbon Monoxide Detector】2-in-1 sensor design, high sensitivity, high reliability and high accuracy.
$ 59.99
free delivery
3 Pakcs Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm & Natural Gas Detector,Propane,Methane,with Backup 9V Battery Feature, Digital Display, for Home, Apartment, RV
【Combination Gas & Carbon Monoxide Detector】2-in-1 sensor design, high sensitivity, high reliability and high accuracy.
free delivery
Promtex 4 in 1 Portable Carbon Monoxide Dioxide Detector, Rechargeable CO CO2 Monitor Meter Air Quality Monitor with Magnetic & Lanyard for Home, Travel, RV, Camping with Temp/Humidity Sensor
【High Precision 4 in 1 CO Detector】 The portable 4-in-1 carbon monoxide detector can monitor the current CO, CO2, temperature and humidity in the air in real time. Equipped with a high-precision sensor (10-year life), the detectable CO concentration range is 0~1000PPM, the CO2 concentration range is 400~5000PPM, and the temperature range is 14~122°F / -10~50°C, humidity range is 0~95%RH. The data is accurate without delay and monitored in real time.
free delivery
Portable Carbon Monoxide Detector, 4-in-1 CO & CO2 Detector for Travel, Rechargeable Carbon Dioxide Monitor with Temp/Humidity Sensor, Custom Alarm Thresholds, 96H Standby, Mini CO Alarm for RV Hotel
4-IN-1 CO & CO2 Detector: This portable carbon monoxide detector features two electrochemical sensors that can continuously monitor the concentrations of carbon monoxide and carbon dioxide, as well as temperature and humidity. It has a detection range of 0 to 1000 ppm for carbon monoxide (CO) and 0 to 5000 ppm for carbon dioxide (CO2), ensuring accurate data and providing reliable monitoring information at all times.
free delivery
Heiman Smart Carbon Monoxide Detectors, Matter CO Detector, Real-time Notification, UL 2034 5th Certified, Wireless Battery Powered Mini Fire Alarm for Home, Compatible with Smartthings,Home Assistant
Trusted Protection, Recognized Excellence — UL 2034 (5th Ed.) Certified and CSFM Approved for dependable residential CO safety. This co detector, is the Winner of the Red Dot Design Award, delivering reliable performance in a sleek, modern form.
free delivery
JAEHSKA Interconnected Smoke Detector Carbon Monoxide Detector Combo with Digital Display and Sound Light Alarm, 2-in-1 Smoke & CO Alarm with Battery Operated for Home, Travel or RV - 3
High Quality Sensors&Keep Your Safety: The combination smoke and CO detector detects both smoke and carbon monoxide faster and more accurately using a photoelectric smoke sensor and an electrochemical CO sensor, protecting your home from two potentially deadly threats.
free delivery
6-in-1 Multi-Function Detector, Plug-in with Magnetic Base and Backup Battery, Large LCD Display, Audible/Visual Alerts for Home, Kitchen, Garage and RV(1 Pack)
6-in-1 Multi-Function Detector: Featuring high-precision sensors and a 3D porous design, this detector provides sensitive and accurate monitoring of temperature, humidity, and other environmental conditions. Built-in rechargeable battery and magnetic base, this portable detector offers continuous, portable safety monitoring—and continues to function even during power outages.
free delivery
Portable CO2 Detector, 4-in-1 Carbon Dioxide Detector for Car with Audible & Visual Alerts, Temp/Humidity Sensor, Magnetic Back, 300H Standby – Ideal for Home, RV, Camping (Black)
[Handheld Carbon Monoxide Detector] This handheld carbon monoxide detector slips into any pocket for on‐the‐go protection. It delivers precise CO readings (0–1000ppm) on a crisp colour screen, with a 0.5s refresh rate. Weight: 105g. Perfect for home, caravan, or workshop.
free delivery
Kidde Smart Carbon Monoxide Detector, Plug-in with AA Battery Backup, Real-Time Notifications, 2.4 GHz Wi-Fi Enabled, Rotating Plug, 85 dB Alarm, 5th Edition, COPDW
REAL-TIME KIDDE APP NOTIFICATIONS: Get alerted to CO when you’re home or away (no subscription required); sounds a loud 85-dB alarm when CO is detected; uses 2.4 GHz Wi-Fi
free delivery
CO2 Carbon Dioxide Air Quality Monitor, Pollution & Ventilation Meter, Tester; Detect & Test Indoor Air Ventilation Levels with CO2 PPM Levels, Temperature and Humidity Sensor Readings on LED Screen
CO2 PPM READINGS ON A LED DISPLAY – Assess the quality of your air and help keep air fresh in any indoor space with this CO2 meter with a highly readable 2.8" 320 x 240 resolution LED screen display.
free delivery
TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange
Carbon Monoxide Detector: TopTes CT-300 is an ideal portable CO tester to help you detect CO gas concentrations timely and accurately, reducing the risk of CO poisoning and protecting your life. It is a must-have tool for homeowners, drivers, campers, DIY-ers, tourists, etc
free delivery
LSENLTY Portable Carbon Monoxide Detectors Support 500-hour Standby Time, 3-in-1 CO Detector (Temp, Humidity, and CO), Alarm Function, Lanyard Design for Camping Travel Car RV
Warm Tips: When there is no carbon monoxide gas in the surrounding environment, the product will display normally: 0000 PPM
free delivery
Smoke and Carbon Monoxide Detector with Digital Display, 10-Year Lifespan with Replaceable Lithium Battery, Photoelectric Fire Alarm and Electrochemical CO Alarm with Test/Silence Button, 2 Pack
Long-lasting Power & Dual Sensors: Powered by a user-replaceable 3V lithium battery, this alarm features a photoelectric smoke sensor and an electrochemical CO sensor for reliable dual protection against two deadly threats
free delivery
5-in-1 Carbon Monoxide Detectors,Combustible Gas Detector,Plug-in & Built-in Backup Battery,Monitoring CO,Natural Gas,Temperature and Humidity,Clear LCD Screen Sound Light Dual Alarm Detector
[High Quality Co & Combustible Gases Alarm Detectors] This plug in carbon monoxide and combustible gases alarm detectors has been rigorously tested,and meet UL standards.CO gas detection concentration: 0~1000PPM. Alarm threshold:CO ≥ 150ppm,alarm within 3 minutes.Combustible gas (LNG/LPG) detection concentration: 0~20%LEL.Alarm threshold: Gas ≥ 7%LEL,alarm within 3 minutes.Temperature detection range:32~210°F(0~99°C),Humidity range:0~99%RH.Combustible gases mainly refer to LNG and LPG, such as natural gas, propane, methane, butane and other explosive gases!
free delivery
3 Packs Smoke and Carbon Monoxide Detector, 2-in-1 Combo Alarm, Battery Operated Smoke Detector & CO Alarm with LCD Display, Dual Sensor Smoke Alarm &CO Sensor, Easy to Install,85db Sound
【2-in-1 Dual Protection for Home Safety】This smoke and carbon monoxide detector combo features a fast-response photoelectric smoke alarm and a high-precision electrochemical CO sensor, delivering reliable smoke detector and carbon monoxide detector performance in one compact unit for whole-home protection.
free delivery
Kidde Carbon Monoxide Detector, Plug In Wall with 10-Year Battery Backup, Digital LED Display, Voice Alerts, Test-Hush Button, 3rd Edition
Easy Installation - simply plug-in to a standard, 120V outlet in your home
free delivery
4-In-1 Carbon Monoxide Detectors, Natural Gas Detector and Propane Detector Battery Powered, with Temper Sensor,Digital Display, CO Monitor, Methane,Propane, CO Detector, Gas Leak Detector for Home,RV
【Multi functional gas detector】This carbon monoxide detector can detect carbon monoxide, methane, propane, and temperature, providing comprehensive protection to ensure the safety of your home.Multi functional gas detector is the best choice for propane detectors, carbon dioxide detectors for home,natural gas detectors, and methane detectors.
free delivery
5 in 1 Carbon Monoxide Detectors, Natural Gas Detector with Dual Alarm & Bulit-in Battery, Propane CO Detector Plug in (Temp & Humidity) for Home RV Camping Travel (White)
【5-in-1 CO & Gas Detector】This upgraded carbon monoxide detectors monitors CO, combustible gas(natural gas, propane, methane, coal gas, etc.), temperature, and humidity in real time. An essential gas leak detector, it provides all-round protection for your family.
free delivery
Portable Carbon Monoxide Detector for Travel, 3-in-1 Rechargeable CO Detector with Alarm, 300H Standby, Temp & Humidity Monitor, Magnetic Back, Custom Alarm Thresholds for RV, Car, Camping, Hotel
【Large Capacity & Extended Runtime】 Powered by a built-in 2000mAh rechargeable battery, this carbon monoxide detector offers exceptional endurance. On a full charge, it provides up to 10-12 days (approximately 300 hours) of continuous monitoring, freeing you from frequent recharging. It charges quickly via a standard USB Type-C cable (5V/1A input) in just 3–4 hours. Note: To conserve power, the display will automatically turn off after 1 minute of inactivity. The sensor, however, remains fully active 24/7, ensuring uninterrupted protection
free delivery
GasDoc DS-X1 Portable Carbon Monoxide Detector with Ambient Light, CO Detector with Magnetic Mount & Mental Hook, Travel CO Monitor with Visual & Audible Alerts for Camping, Cars, RV & Hotel
Portable CO Detector with Ambient Light: DS-X1 portable carbon monoxide detector measures 0–999ppm while providing practical illumination for outdoor use. Designed as a travel carbon monoxide detector, it combines real-time CO monitoring with compact lighting for safer camping and trips
free delivery
WiFi Smart Carbon Monoxide & Natural Gas Detector, 2 in 1 Plug-in Gas Leak Detector with App Alerts, CO Detector for Home, Detects Natural Gas, LPG, Methane, Propane, Butane, LED Display
【2-IN-1 PROTECTION FOR GAS & CO】 Protect your home with one device that detects both combustible gases and carbon monoxide. Monitors natural gas, LPG, methane, propane and butane while also tracking dangerous CO levels for complete household safety.
free delivery
TOPTES CT-580 Portable Carbon Monoxide Detector, Rechargeable CO Detector with Vibration, Visual & Audible Alarms, 0-1000PPM, TFT Color Display for Home, Camping, Travel, Industrial & Professional Use
Fast and Accurate: The TOPTES CT-580 Carbon Monoxide Detector is a manual inspection tool equipped with a high-sensitivity, high-accuracy DDS sensor providing a quick response within 0.3 seconds. It detects CO concentrations from 0 to 1000 PPM and features two alarm thresholds, allowing for rapid assessment of environmental changes
free delivery
2 Packs Combination-Explosive-Gas-Carbon-Monoxide-Detectors,Plug in CO,LPG,Narural-Gas-Detector Alarm,4-in-1 Real-time Monitoring & Display with Temperature & Humidity for Home,Aparttment,RV
Upgrade four sensors for high reliability, high sensitivity, and high precision.
free delivery
Portable Carbon Monoxide Detector for Travel, 4-in-1 CO Detector with Audible & Visual Alerts, Magnetic Lanyard, 220H Standby, CO Monitor/Temp/Humidity/UV Sensor for Camping, Home, RV, Car (Olive)
【4-in-1 Portable Carbon Monoxide Detector】The newly upgraded 4-in-1 portable CO detector is your ultimate safety companion with powerful performance. It not only accurately measures airborne CO concentrations (0-1000ppm) to ensure your safety, but also monitors humidity (0-99% RH), temperature (14-140°F), and UV index (0-11) (the UV sensor - in the center below the detector facing the sun). It also includes a rear LED light for temporary illumination in dark or emergency situations. Whether indoors or outdoors, day or night, it delivers real-time air quality data and peace of mind in homes, hotels, kitchens, or travel—compact, multifunctional, and ideal for everyday protection anywhere.
free delivery
Kidde Carbon Monoxide Detector, Plug-in with AA Battery Backup, Easy-to-Read Digital Backlit Display, 85 dB Alarm, Rotating Plug, LED Status Light Indicators, 5th Edition, COPD
DETECTS CARBON MONOXIDE: With backlit display that shows CO levels & sounds a loud 85 dB alarm when CO is detected to signal evacuation; sleep peacefully with no nighttime chirps; LED warning light indicates hazard; Test/Hush button for quick checks
free delivery
4-in-1 Portable Carbon Monoxide Detector for Travel & Camping, Rechargeable CO Monitor with Temperature, Humidity & UV Index Display, 1000mAh Battery, Magnetic & Lanyard for RV, Car, Tent, Hotel
4-in-1 Full Environmental Awareness: Unlike traditional single-function CO alarms, this device is your ultimate travel guardian. It simultaneously monitors Carbon Monoxide (CO) levels, Temperature, Humidity, and UV Index for campers and travelers who need to know their environment inside out-whether you are checking heater safety or sun intensity
free delivery
Kidde Carbon Monoxide Detector, AA Battery Powered, Digital Backlit Display, Portable for Travel or Home, LED Status Indicators, 85 dB Alarm, 5th Edition, COBD
DETECTS CARBON MONOXIDE: Model COBD sounds a loud 85-decibel alarm when carbon monoxide is detected; easy-to-read backlit digital display shows status and alarm operation; a test/hush button enables quick checks or silencing alerts; replaces model 900-0146LP
free delivery
Plug-in C-arbon M-onoxide D-etector with Digital Color Display C-O Detector for C-O, Temperature & Humidity, 85dB Loud Alert, Self Test Function C-O Detector, for Home, Bedroom, Kitchen, RV (White)
4-in-1 Protection for Your Home:This advanced detector combines carbon monoxide detection, combustible gas leak detection, temperature monitoring, and humidity monitoring in one compact unit. It helps provide around-the-clock awareness of indoor air conditions and potential hazards from natural gas, propane, methane, butane, LNG, and LPG.
free delivery
gutong 4 in 1 Carbon Monoxide Detectors Plug in, CO Detector & Natural Gas Detector with Battery Backup, HD Digital Display Monitors CO, Combustible Gas, Temp, Humidity - Home Safety for House, RV
4 in 1 Smart Detector: Carbon monoxide detectors plug in can monitor CO, combustible gases, temp and humidity in real time, and display dynamic data on HD screen. The sleek and smart design makes it perfectly integrated into your home
free delivery
AEGTEST AGT-2309 Portable Carbon Monoxide Detector, 15-Day Standby, Rechargeable Mini CO Monitor with Lanyard for Travel & Camping, Handheld CO Meter with Audible & Visual Alerts, 0-1000ppm - Blue
Carbon Monoxide Detector: The AGT-2309 is a portable carbon monoxide detector designed for long-term monitoring of carbon monoxide concentrations in the air. It can detect CO levels from 0 to 1000 PPM and is equipped with a high-precision sensor that responds in just 0.3S, providing timely protection for your safety
free delivery
Professional 15-in-1 Air Quality Monitor with Smartphone APP - Dual Chip - Sensors Detect CO2, PM2.5/PM10, HCHO, TVOC | Real-Time Alerts & Custom Thresholds | for Home, Car, Office, Plants, Pets
【Smart LED Display】This air quality monitor features a high-definition color screen that displays real-time data with exceptional clarity. It provides an overall assessment of indoor air quality while tracking the average levels of various gases, helping you quickly identify potential air pollutants. In alert mode, the screen changes color to notify you of significant air quality fluctuations.
free delivery
Kidde Smart Carbon Monoxide Detector & Indoor Air Quality Monitor, Plug-in with AA Battery Backup, Real-Time Notifications, 2.4 GHz Wi-Fi Enabled, Rotating Plug, 85 dB Alarm, 5th Edition, COPDLQW
REAL-TIME NOTIFICATIONS: Sends alerts via the Kidde App (no subscription required); monitors indoor air quality, humidity, and TVOC levels; uses 2.4 GHz Wi-Fi; sounds a loud 85-dB alarm when CO is detected
free delivery
First Alert CO600-3 Plug-In Carbon Monoxide Alarm, 3-Pack
Keep your family safe from carbon monoxide in multiple rooms with this convenient plug-in carbon monoxide alarm 3-pack; the alarms work with any standard outlet
free delivery
Kidde 21010047 C3010D Carbon Monoxide Alarm with Digital Display and 10 Year Sealed Battery
LED Lights - Green for normal operation, Red for alarm, Amber for Error.
free delivery
Kidde 21010073 Worry Free Carbon Monoxide Alarm for Living Area with 10 Year Sealed Lithium Battery
The Kidde C3010 is a sealed battery, carbon monoxide alarm that uses electro-chemical sensing technology to protect you and your family from the dangers of carbon monoxide
free delivery
5% discount
Kidde Carbon Monoxide Detector, Plug In Wall with 10-Year Battery Backup, Safety Light for Hearing Impaired or Deaf People, Digital LED Display
Easy Installation - simply plug-in to a standard, 120V outlet in your home
$ 78.76
free delivery
