Co2 sensor
Co2 sensor for sale on Ireland's largest auction and classifieds sites
Air quality monitor - quality, - £13.99
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
Professional digital - professional, - £17.49
Co2 detector humidity • Air quality brand • New professional grade - Free postage - New and Used
Co2 detector humidity • Air quality brand • New professional grade - Free postage - New and Used
Temtop m2000 air - (2nd, - £104.70
Advanced built sensor • Equipped temtop laser • Senseair ndir co2 - Free postage - New and Used
Advanced built sensor • Equipped temtop laser • Senseair ndir co2 - Free postage - New and Used
Inkbird digital co2 - inkbird, - £69.30
Dual outlets compatible • Co2 device ventilation • Sensor built photo - Free postage - New and Used
Dual outlets compatible • Co2 device ventilation • Sensor built photo - Free postage - New and Used
Looking for more co2 sensor?
Search eBay live — fresh results filtered for the best value, updated every hour.
In1 portable co2 meter air - meter, - £11.48
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
📊
48 listings · from £7.49 · avg £33.05
⚠️ These listings were last updated more than 21 days ago.
Search for fresh listings
Browse 48 co2 sensor listings currently in our index. Prices range from £7.49 to £187.9, with an average of £33.05. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about co2 sensor →
Co2 meter temperature - co2, - £12.49
Carbon dioxide detection • Specifications screen type • Range 400 5000ppm - Free postage - New and Used
Carbon dioxide detection • Specifications screen type • Range 400 5000ppm - Free postage - New and Used
3in1 portable carbon - portable, - £12.69
Carbon dioxide detection • Please noted that • Stock our products - Free postage - New and Used
Carbon dioxide detection • Please noted that • Stock our products - Free postage - New and Used
Inkbird indoor air - inkbird, - £64.99
Accuracy 30ppm reading • Indoor co2 detector • Built senseair sensor - Free postage - New and Used
Accuracy 30ppm reading • Indoor co2 detector • Built senseair sensor - Free postage - New and Used
Portable co2 detector mini - portable, - £24.99
Co2 detector • Superior infrared ndir • Sensor high precision - Free postage - New and Used
Co2 detector • Superior infrared ndir • Sensor high precision - Free postage - New and Used
Air quality monitor co2 - 6, - £14.79
Elm327 usb modified • Obd2 code scanner • Can ford elm - Free postage - New and Used
Elm327 usb modified • Obd2 code scanner • Can ford elm - Free postage - New and Used
Co2 tvoc air quality - -in-1, - £9.49
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
Co2 digital meter - meter, humidity - £10.12
Functions tvoc hcho • Temperature humidity air • Quality monitoring device - Free postage - New and Used
Functions tvoc hcho • Temperature humidity air • Quality monitoring device - Free postage - New and Used
Air quality monitor - in, - £10.00
Hcho formaldehyde pm2.5 • Microscopic dust co2 • Carbon dioxide built - Free postage - New and Used
Hcho formaldehyde pm2.5 • Microscopic dust co2 • Carbon dioxide built - Free postage - New and Used
Trend co2 transmitter sensor - co2, - £100.00
Trend co2 transmitter • Sensor module reliable • Accurate tool monitoring - Free postage - New and Used
Trend co2 transmitter • Sensor module reliable • Accurate tool monitoring - Free postage - New and Used
Flamefast co2 and - co2, temperature - £115.10
Flamefast co2 temperature • Monitor lcd display • Reliable unit accurately - Free postage - New and Used
Flamefast co2 temperature • Monitor lcd display • Reliable unit accurately - Free postage - New and Used
Sonoff airguard co2 detector - sonoff, - £46.79
Diy smart swicth • Plugs don work • Wall switch - Free postage - New and Used
Diy smart swicth • Plugs don work • Wall switch - Free postage - New and Used
5in1 co2 meter air - co2, quality - £10.45
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
Portable co2 meter air - in, - £10.99
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
Large backlit lcd • Display you can • Clearly see amount - Free postage - New and Used
Air quality monitor - co2, meter - £14.79
Greenhouse use boosts • Fruit photosynthesis locks • Quality yield gang - Free postage - New and Used
Greenhouse use boosts • Fruit photosynthesis locks • Quality yield gang - Free postage - New and Used
4in1 carbon monoxide co2 - carbon, - £35.09
Series carbon monoxide • Detector ensure your • Safety breathe easy - Free postage - New and Used
Series carbon monoxide • Detector ensure your • Safety breathe easy - Free postage - New and Used
5in1 co2 meter air quality - co2, - £10.49
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
Air quality meter tester - tester, bt - £16.85
Detection range temperature • Continuous recording perception • Formaldehyde tvoc concentration - Free postage - New and Used
Detection range temperature • Continuous recording perception • Formaldehyde tvoc concentration - Free postage - New and Used
Co2 digital meter humidity - co2, - £10.99
- Free postage - New and Used
- Free postage - New and Used
Air quality detector - 6, - £13.99
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
Co2 monitor with temperature - co2, - £12.59
Random airplane launcher • Catapult gun foam • Glider plane outdoor - Free postage - New and Used
Random airplane launcher • Catapult gun foam • Glider plane outdoor - Free postage - New and Used
Inkbird co2 detector iam - inkbird, - £59.99
Ultimate light sound • Dual alarm system • Makes unique market - Free postage - New and Used
Ultimate light sound • Dual alarm system • Makes unique market - Free postage - New and Used
Air quality monitor - 6, - £13.98
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
Air quality detector • Built lithium battery • 1200mah due different - Free postage - New and Used
6in1 air quality monitor home - 6in1, - £14.79
Air quality detector • Co2 indication 799ppm • Green flashing 1200 - Free postage - New and Used
Air quality detector • Co2 indication 799ppm • Green flashing 1200 - Free postage - New and Used
Inkbirdplus portable co2 - portable, - £39.95
Dual alarm function • Co2 detector includes • Color coded light - Free postage - New and Used
Dual alarm function • Co2 detector includes • Color coded light - Free postage - New and Used
Sonoff co2 meter - co2, smart - £45.59
Smart switch diy • Plug don work • Wall - Free postage - New and Used
Smart switch diy • Plug don work • Wall - Free postage - New and Used
Zehnder co2 sensor wall - zehnder, - £187.90
Zehnder co2 sensor • Wall 655000855 high • Quality device measure - Free postage - New and Used
Zehnder co2 sensor • Wall 655000855 high • Quality device measure - Free postage - New and Used
Tuya wifi air - in, 1 - £32.99
Air quality detector • Product material abs • Body tft electroplated - Free postage - New and Used
Air quality detector • Product material abs • Body tft electroplated - Free postage - New and Used
Ens160 aht21 air - air, quality - £7.49
Introducing ens160 aht21 • State art sensor • Comprehensive indoor air - Free postage - New and Used
Introducing ens160 aht21 • State art sensor • Comprehensive indoor air - Free postage - New and Used
Lcd co2 meter air quality - co2, - £12.99
Carbon dioxide detection • Specifications screen type • Range 400 5000ppm - Free postage - New and Used
Carbon dioxide detection • Specifications screen type • Range 400 5000ppm - Free postage - New and Used
Air quality meter tester - air, bt - £15.86
Detection range temperature • Continuous recording perception • Formaldehyde tvoc concentration - Free postage - New and Used
Detection range temperature • Continuous recording perception • Formaldehyde tvoc concentration - Free postage - New and Used
Co2 meter air - co2, - £8.99
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
0.6 hcho formaldehyde • Large backlit lcd • Display you can - Free postage - New and Used
Kidde carbon monoxide - carbon, alarm - £15.95
Carbon monoxide • Kidde 2030 dcr • Alarm detector reliable - Free postage - New and Used
Carbon monoxide • Kidde 2030 dcr • Alarm detector reliable - Free postage - New and Used
Portable lcd co2 meter - co2, - £9.65
Product compact easy • Carry ventilation holes • Rear not only - Free postage - New and Used
Product compact easy • Carry ventilation holes • Rear not only - Free postage - New and Used
Sontay co2 wall - gs-co2-w,, - £19.36
- Free postage - New and Used
- Free postage - New and Used
Ubibot co2 monitor detector - ubibot, - £16.22
Resolution 0.1 ppm • Accuracy wireless monitoring • This probe should - Free postage - New and Used
Resolution 0.1 ppm • Accuracy wireless monitoring • This probe should - Free postage - New and Used
2026 spider farmer - farmer, grow - £48.99
New growing not • Sure how high • Hang your lights - Free postage - New and Used
New growing not • Sure how high • Hang your lights - Free postage - New and Used
Scd40 scd41 true co2 - true, gas - £28.89
Scd40 scd41 sensor • Module selected arduino • Drivers tutorial order - Free postage - New and Used
Scd40 scd41 sensor • Module selected arduino • Drivers tutorial order - Free postage - New and Used
Co2 detector monitor - co2, - £65.99
Perfect preventing headaches • Fatigue lack concentration • Compact battery operation - Free postage - New and Used
Perfect preventing headaches • Fatigue lack concentration • Compact battery operation - Free postage - New and Used
Fireangel carbon monoxide - fireangel, - £18.99
Flashing amber audible • Chirp will alert • You when batteries - Free postage - New and Used
Flashing amber audible • Chirp will alert • You when batteries - Free postage - New and Used
Inkbird bluetooth air quality - bluetooth, - £51.99
Accuracy 30ppm reading • Indoor co2 detector • Built senseair sensor - Free postage - New and Used
Accuracy 30ppm reading • Indoor co2 detector • Built senseair sensor - Free postage - New and Used
Air quality monitor - quality, - £10.49
Lcd color screen • Co2 index hcho • Formaldehyde tvoc temperature - Free postage - New and Used
Lcd color screen • Co2 index hcho • Formaldehyde tvoc temperature - Free postage - New and Used
Sontay co2 - gs-co2-w,, - £21.50
- Free postage - New and Used
- Free postage - New and Used
Analox iii co2 sensor - analox, 5s - £63.10
Experience precision analox • Iii co2 sensor • Transducer deliver highly - Free postage - New and Used
Experience precision analox • Iii co2 sensor • Transducer deliver highly - Free postage - New and Used
Try this: eon energy monitor | wilcom | beamex | huntron | calibrator | anemometer wind vane | elcometer | electricity energy monitor | owl wireless electricity monitor | variable power supply
Shop by budget
Everything you need to know about co2 sensor
Whether you are looking for a brand-new or second-hand co2 sensor, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £7.49, while premium listings can reach £187.9 — giving you a wide budget spread to work with. The average price of £33.05 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.