Top Co Detector Reviews

Upgraded Mini CO2 Detector, Multi-Function CO2 Monitor Meter Air Quality Monitor Carbon Dioxide Detector Portable Temperature and Humidity Detector for Travel Home Indoor or Anywhere You Use

【Mini Portable CO2 Detector】The 3-IN-1 CO2 monitor uses NDIR technology to monitor indoor and outdoor CO2 concentration, the detection range is 400-5000PPM, it can also monitor Humidity range(0-99%RH) and Temperature range (-10-50℃)..
【Large Full-Color LCD Screen Design】The mini CO2 meter can monitor CO2 concentration in real time and can send out smart alarms according to different concentrations of CO2. At the same time, this CO2 detector with large full-color LCD screen design is easy to read with eye protective function..
【Easy to Carry】The portable carbon dioxide detector is lightweight and compact, combining beauty and technology, easy to carry, with an anti-loss hanging rope, allowing you to keep informed of environmental changes around you..
【Upgraded Button Function】The CO2 monitor with three buttons design,The "M" key can adjust the brightness, it has 3 different brightness,choose the low brightness mode can help you save the battery, the Power button can Switching degree Fahrenheit and Celsius with short press, long press is to turn on or off the device, The "S" key can turn ....

Check Stock

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display

CO detector with alert modes & 2 LED lights that pulse for power & CO detection.
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm.
Protects during a power failure - CO detector operates on 3-AA batteries.
Easy to read digital display - allows for easy viewing of carbon monoxide levels.

Check Stock

SITERWELL Smoke Detector Carbon Monoxide Detector Combo with Voice Speaker, Dual Sensor Fire and CO Alarm with LED Light & Test Button, Battery Operated, Auto-Check, UL 217 & UL 2034 Standards, 1 Pack

Unique Voice Speaker - Unique smoke detector and CO detector alarms distinguish between smoke alarms and CO warnings. Co alarm: "Warning, carbon monoxide, evacuate! Smoke alarm: "Fire!" . Verbal warning system reduces confusion and helps people maintain order..
Reduced Cooking Nutrition Alert - This smoke and carbon monoxide detector uses photoelectric smoke sensing technology to quickly detect slow burns. It is suitable for many locations, especially in cooking areas, to reduce false alarms of cooking smoke..
Not Disturb Mode - With SITERWELL fire and CO detectors, you don't have to worry about your rest. In low voltage or fault mode, simply press the button and the alarm clock will go into non-disruptive mode, avoiding nighttime alarms and frequent flashes, and you can enjoy approximately 10 hours of silence..
Self Check Function - The smoke detector carbon monoxide detector combination replaces the manual daily test and automatically checks the batteries and sensors every 80 seconds to ensure they are working properly. You'll be alerted when a malfunction occurs..

Check Stock

First Alert SA511CN2-3ST Wireless Interconnected Smoke Alarm with Voice Location, Battery Operated, 2 Pack , WHITE

Smoke detector carbon monoxide detector combo – sounds loud 85 decibel alarm with voice alerts that announce "Fire! Fire!" or "Warning! Carbon Monoxide!".
Hardwired with backup battery - combo smoke and carbon monoxide detector is hardwired into a 120V power source with 9V battery backup.
Easy installation – battery door is on the front for quick replacement.
Photoelectric smoke detector senses visible fire particles and electrochemical CO detector provides accurate readings.
Will interconnect with up to 24 other devices including smoke, CO and heat alarms.

Check Stock

INKBIRD WiFi Indoor Air Quality Monitor, CO2 Detector, Accurate NDIR Sensor, Temperature and Relative Humidity, Indoor CO2 Meter with Data Logger, for Cars, Wine Cellars, Grow Tents, Homes (INK-CO2W).

✅✅【Accurate Reading】INKBIRD carbon dioxide monitor can accurately detect the current CO2 concentration, temperature, and humidity in the air. This CO2 detector uses the NDIR CO2 sensor..
【APP Real-Time Monitoring】After the mobile phone is connected to the 2.4GHz WiFi network, connect our CO2 detector in the INKBIRD APP, and you can receive and view the detection data at any time. And the app can output data to your email, you can also set the alarm value reminder function through the app..
【Convenient Calibration】 To ensure the accuracy of measurement, this WiFi CO2 monitor supports the calibration function. Press three buttons at the same time in an open environment and let it stand for 200 seconds to calibrate this CO2 meter easily..
⏰⏰【CO2 Concentration Stage & Sound Alarm】This WiFi Indoor CO2 detector is designed with 3 stages of CO2 concentration - normal mode (400-700 ppm), warning mode (700-1500 ppm), and danger mode (1500-5000 ppm)..
【Wide Application】This indoor CO2 meter is ideal for use in grow rooms, offices, kitchens, schools, kitchens, ....

Check Stock

Metamorph

Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there's smoke or CO in your home.
Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is.
Get phone alerts so you know something's wrong even when you're away from home[1].
CO detector looks out for carbon monoxide and tells you where it's located.
With App Silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke.

Check Stock

Air Quality Monitor Indoor 5-in-1 CO2 Detector CO2 Monitor Accurate for CO/ CO2/ HCHO/TVOC/AQI Manual Calibration Real Time Data Mean Value Recording for Home/ Office/ Car/ Hospital/Coffee Shop

【Health Assistant CO2 Detector CO2 Monitor】The built-in high-precision sensor of the CO2 monitor can quickly, accurately and efficiently measure....
【Instant Reading CO2 Detector】After two minutes of preheat, the HD LED screen shows clearly the real time CO, CO2, HCHO, TVOC, AQI of five....
【Easy Operation & Long Battery Life】 There are three simple operation buttons on the top of the air quality monitor, ON-OFF: long press for 3....
【Portable & Widely Applicable】A palm-sized portable CO2 detector, the size is only 4.8*2.5*1.1 inches. The bottom of the air quality monitor is....
【Buy Now with Confidence】 We promise that the professional after-sales team can bring customers the best service. Customer satisfaction is the....

Check Stock

Made

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.

Check Stock

Excursions

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.

Check Stock

Carbon Cycle

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.

Check Stock

Basement AC

CO detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.
Plug-in that still works during a power failure - 2-AA batteries (included) provide backup for your CO alarm in the event of a power outage.
Easy & quick installation - plugs into any standard AC wall outlet.
Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.

Check Stock

Kidde Carbon Monoxide Detector with Lithium Battery, 3 LED Lights & Alarm Memory

Fire & CO Detector in 1 unit with alert modes, LED light, test-silence button, & Replacement Alert: a chirp that notifies when the unit needs to be replaced.
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm.
Protects during a power failure - CO detector operates on a 10-Year, sealed lithium battery.
Easy installation & no battery fuss - CO alarm will automatically activate when attached to the mounting bracket.

Check Stock

Kidde Smoke & Carbon Monoxide Detector, Combination Smoke & CO Alarm with Lithium Battery, Replacement Alert, Pack of 2

Fire & CO Detector in 1 unit with alert modes, LED light, test-silence button, & Replacement Alert: a chirp that notifies when the unit needs to be replaced.
Photoelectric & electrochemical sensing technology - combination smoke & CO detector detects visible fire particles, 85 decibel alarm alerts of fire.
No battery replacement needed - combo smoke and CO detector operates on a non-replaceable, 10-year lithium battery.
Replacement Alert - can be silenced for 3 days at a time, maximum of 30 days.
tamper-resistant technology deters removal of the unit or battery from the wall or ceiling.

Check Stock