Best Co2 Detectors Deals Online in the UK (24 Deals Found)

Last Updated - 14/09/2026 Sort By:

Best Choice
Kidde

New
Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
Continuous monitoring

£13.75
22% Off
Fireangel

New
FireAngel FA6813 Portable Carbon Monoxide Detector/Alarm, 10 Year CO Alarm
CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO

£13.98 £17.99
New
SONOFF CO2 Meter Smart Wi-Fi Air Quality Monitor Matter Over Temp Humi Detectors
SONOFF New Products.

£35.88
Fireangel

New
FireAngel FA6812 Digital Carbon Monoxide Detector for Home, 10yr CO Alarm
CARBON MONOXIDE ALARM: The 10-year electrochemical sensor detects dangerous carbon monoxide (CO) levels, alerting with 4

£18.99
New
Temtop Air Quality Monitor for CO2 PM2.5 PM10 Particles Detector Temperature
The Temtop Air Quality Monitor is a reliable and accurate device for detecting CO2, PM2.5, and PM10 particles, as well a

£104.69
Best Value
XINDUM

New
XINDUM Carbon Monoxide Detector 10-Year Battery LCD Display CE Black 1Pack
Accurate Relialbel CO Detector: Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high ac

£14.44 £19.99
Kidde

New
Twin Pack Kidde 5CO Battery Powered Carbon Monoxide Alarm and Detector - 10 Year Sensor Life with AA Batteries
BATTERY POWERED: Each alarm comes equipped with 2x AA batteries included, allowing your alarm to be set up immediately u

£23.50
New
CEM GD-3803 Multiple Gas Analyser Measure CO, CO2 and O2
MIN, MAX, AVG, HOLD display.

£255.00
FUMIXTEX

New
FUMIXTEX Carbon Monoxide Detector with LCD Display,CO Alarms Replaceable Battery Powered,10 Year Sensor Life Portable CO
Long-lasting Performance: Our Carbon Monoxide Detector features a 10-year sensor lifespan, ensuring reliable protection

£25.98
New
Zemeollo 10-in-1 Indoor Air Quality Monitor Detector for CO2 CO HCHO TVOC
Zemeollo 10-in-1 Indoor Air Quality Monitor Detector for CO2 CO HCHO TVOC

£49.57
23% Off
SwitchBot

New
SwitchBot CO2 detector with Built-in Hygrometer, Temperature Humidity Monitor with carbon dioxide monitor, Bluetooth CO2
6-in-1 Multi-Functional Display Screen: SwitchBot Meter Pro CO2 features a large screen that simultaneously displays CO2

£53.99 £69.99
15% Off
Safeliveo

New
Safeliveo Carbon Monoxide Detector with Replaceable Battery, Gray,1Pack
Replaceable Batteries: This Carbon Monoxide Detector is powered by two replaceable AA batteries that last 1 years. Equip

£11.47 £13.49
New
5in1 CO2 Meter Air Quality Detector Air Tester Carbon Dioxide Detector Tester
0 ~ 0.6 mg/m³ (HCHO formaldehyde).

£13.09
15% Off
Fireangel

New
FireAngel FA3820 Portable Carbon Monoxide Detector/Alarm, 10 Year Battery
CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO

£22.00 £25.99
New
INKBIRD Digital CO2 Controller Monitor ICC-510 Carbon Dioxide Detect NDIR Sensor
Dual outlets compatible with CO2 device and ventilation fan.

£99.00
FUMIXTEX

New
FUMIXTEX Carbon Monoxide Detector with LCD Display,CO Alarms Replaceable Battery Powered,10 Year Sensor Life Portable CO
Long-lasting Performance: Our Carbon Monoxide Detector features a 10-year sensor lifespan, ensuring reliable protection

£14.27
New
Chauvin Arnoux C.A 1510 CO2 Detector 0-5000 ppm Datalogger

£151.50
New
10 In 1 Air Quality Monitor PM CO2 Meter Carbon Dioxide Level TVOC HCHO Detector
Its compact design makes it easy to carry, allowing you to test different areas effortlessly.

£30.37
New
9-in-1 Air Quality Monitor CO2/PM2.5/TVOC/HCHO Detector LED Digital Display
TVOC Detection Ranges: 0-2.0mg/m3.

£36.71
New
INKBIRD INK-CO2W WIFI CO2 Monitor 3in1 Indoor Air Quality Detector App Control
🌍【3 in 1 WIFI CO2 Monitor】INKBIRD Carbon Dioxide Detector is equipped with a premium sensor, which can quickly and sens

£64.77
New
Air Quality Monitor CO2 Detector CEM DT-182D Temp & Humidity Meter
CEM DT-182D CO₂ Air Quality Monitor Portable CO₂ monitor with built-in temperature and humidity measurement.

£10.79
New
CO2 Digital Meter Humidity Detector Air Quality Dioxide Carbon Monitor Analyzer
🌬️5-in-1 Monitoring: CO₂, TVOC, HCHO, temperature & humidity detection.

£23.50
New
INKBIRD CO2 Controller ICC-500T Carbon Dioxide Control Greenhouse Ventilation UK
Then the PV window will display 8888 and blink, the SV window will display the CO2 concentration setting.

£159.00
New
14 in 1/13 in 1 Air Quality Monitor Tuya WIFI CO/CO2 Detector Real Time Monitori
CO2 Detection Accuracy: 1PPM.

£61.99

24 Co2 Detectors deals are available from: Amazon, eBay stores, starting from £10.79.
The biggest discount we found is 28% on XINDUM Carbon Monoxide Detector 10-Year Battery LCD Display CE Black 1Pack at Amazon.
The lowest price we found is £10.79 while the highest is £255.00.
Prices for the best Co2 Detectors deals average at £54.51.
Last updated on September 14, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Co2 Detectors.