Carbon dioxide detectors in comparison
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Last updated on 17.09.2026
1
First Alert Plug in Carbon Monoxide Alarm
First Alert
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9,9
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2
CO2 Monitor for Home CO2 Detector, Photoacoustic Sensor
U UNNI
free shipping
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9,8
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3
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
TOPTES
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9,8
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4
VETOUCH Plug in CO2 Detector Wall, 3-in-1 Air Quality Monitor CO2 Alarm, Digital Display CO2 Monitor, Household Temp Humidity Meter, Real-Time CO2 Level Sensor Alert for Home Office School Garage
VETOUCH
free shipping
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9,8
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5
Kidde Smart Smoke & CO Detector with Ring, AA Battery, RGCUDR-RW
Kidde
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9,7
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6
X-Sense Smoke Detector Carbon Monoxide Detector Combo, SC07, 1-Pack
X-Sense
12% off
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9,7
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7
Carbon Monoxide CO Meter by Forensics | USA NIST Calibration | Dust & Explosion Proof | USB Recharge | Sound, Light and Vibration Alarms | 0-1000 ppm |
FORENSICS DETECTORS FD
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9,4
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8
SITERWELL Plug in Carbon Monoxide Detector 10 Year Battery&AC Powered,
SITERWELL
14% off
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9,4
Offer ends in:
06Days
22hours
16minutes
31seconds
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9
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
EG
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9,3
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10
Klein Tools ET110 CO Meter, Carbon Monoxide Tester and Detector with Exposure Limit Alarm, 4 x AAA Batteries and Carry Pouch Included
KLEIN TOOLS
7% off
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9,3
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You might also be interested in these carbon dioxide detectors.
Heiman Carbon Monoxide Detectors, 10-Year Product Life CO Detector, C1-S
UL 2034 5th Ed. Certified, CSFM Approved, Red Dot Award-Winning: Rigorously tested to meet the latest UL 2034 5th Edition safety standard for reliable CO detection and officially approved by the California State Fire Marshal (CSFM). Also recognized with a Red Dot Award for standout design and innovation—ideal for modern homes and apartments.
$ 28.99
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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.
$ 56.99
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23% off
Honeywell, Inc. C7232B1006 Carbon Dioxide Sensor with LCD display, Duct Mount
Honeywell
$ 439.88
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Extech CO100 Air Quality Carbon Dioxide Monitor
Checks for Carbon Dioxide (CO2) concentrations
$ 99.00
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Carbon Dioxide Leak Detector, 400/4000PPM
Price For: Each Includes: Batteries, Hard Case and Instructions Carbon Dioxide Concentration: 400 to 4000 PPM Relative Humidity Range: - Data Hold: No Auto Power Off: Yes Oxygen Concentration: - Sensor Life: 2 Years Power Source: (4) AA Batteries Manufacturers Warranty Length: 1 Year Display: Audible and 6 LED Bar Graph Resolution: - Humidity Accuracy: -
$ 596.19
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BW Technologies GasAlertMax XT II 4-Gas Detector with Pump, Combustible, O2, H2S and CO, Yellow
Four-gas detector for surveying levels of H2S, oxygen (O2), carbon monoxide (CO), and combustibles in natural and industrial environments, and in other personal safety, training, research, and ambient air monitoring applications
$ 1,099.00
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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
$ 470.00
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Sensorcon AV8 Inspector Portable Aviation CO Monitor | CE Certified | Programmable Alerts | Industrial and Scientific | IP67 | Pro Model
Aviation-Grade CO Detection: Designed for pilots, the Sensorcon AV8 Pro Portable CO Monitor (AV8-CO-03) uses advanced electrochemical sensors and embedded software to provide accurate, real-time carbon monoxide readings in parts per million (ppm).
$ 194.00
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ATuMan 4-in-1 CO₂ Detector, Indoor Air Quality Monitor, NDIR Sensor
High-Precision NDIR Sensor: Equipped with advanced NDIR technology for accurate CO2 measurement (400-5000ppm), plus temperature and humidity monitoring for reliable indoor air quality data
$ 59.99
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Siterlink Carbon Monoxide Detectors Plug in,10 Year Replaceable Battery
AC Plug-in with 10 Year Battery Backup:Enjoy the convenience of this CO detector that plugs into a standard outlet, utilizing AC power for continuous operation. In case of a power outage, the built-in 10 years battery backup ensures uninterrupted protection, keeping you safe even during unexpected blackouts.
$ 26.99
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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
$ 103.00
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Kidde Carbon Monoxide Detector, Plug-in & AA Battery Backup, 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
$ 43.97
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