Co2 sensor
Co2 sensor for sale on Ireland's largest auction and classifieds sites
Air quality monitor - in, - £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
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
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
Inkbird digital co2 - digital, - £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
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Portable co2 meter air - 1, - £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
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48 listings · from £7.49 · avg £37.15
Browse 48 co2 sensor listings currently in our index. Prices range from £7.49 to £200, with an average of £37.15. 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 →
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
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
6in1 air quality monitor - 6in1, home - £14.79
Masking painters tape • Dispenser scraper fnirsi • Dso 152 digital - Free postage - New and Used
Masking painters tape • Dispenser scraper fnirsi • Dso 152 digital - Free postage - New and Used
Inkbird indoor air quality - air, - £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
In1 portable co2 meter - in1, - £10.48
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
Air quality monitor - in, - £17.77
Air quality monitor • Also suitable outdoor • Use making versatile - Free postage - New and Used
Air quality monitor • Also suitable outdoor • Use making versatile - Free postage - New and Used
6in1 air quality monitor - air, - £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
Sonoff co2 meter smart - co2, wi-fi - £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
Breathing buildings co2 - buildings, - £85.00
Breathing buildings co2 • Temperature humidity room • Sensor 496283 high - Free postage - New and Used
Breathing buildings co2 • Temperature humidity room • Sensor 496283 high - 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
120 20ma current - (120-4~20ma, - £68.77
Item type co2 • Accuracy 40ppm output • Signal positive green - Free postage - New and Used
Item type co2 • Accuracy 40ppm output • Signal positive green - Free postage - New and Used
Co2 digital meter - co2, - £10.60
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
Ens160 aht21 air quality - ens160+aht21, - £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
Scd40 scd41 true co2 - scd41, - £20.89
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
Portable lcd co2 meter - 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 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
Air quality monitor co2 - in, - £14.79
Masking paint tape • Applicator set blue • Dispenser diy tool - Free postage - New and Used
Masking paint tape • Applicator set blue • Dispenser diy tool - Free postage - New and Used
Air quality monitor - in, 1 - £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
5in1 co2 meter temperature - 5in1, - £13.79
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
5in1 co2 meter air quality - co2, - £9.95
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
Co2 monitor with - with, temperature - £12.59
Carbon dioxide detector • Has wide range • Uses strong practicability - Free postage - New and Used
Carbon dioxide detector • Has wide range • Uses strong practicability - Free postage - New and Used
Lcd co2 meter air - lcd, quality - £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 detector - 6, - £12.95
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 sensor transmitter - co2, - £73.00
Item type co2 • Transmitter widely used • Agricultural greenhouse flower - Free postage - New and Used
Item type co2 • Transmitter widely used • Agricultural greenhouse flower - Free postage - New and Used
Co2 sensor mhz19 - mhz19, portable - £42.41
Z19 infrared co2 • Sensor high performance • Which combines mature - Free postage - New and Used
Z19 infrared co2 • Sensor high performance • Which combines mature - Free postage - New and Used
Vaisala co2 carbon dioxide - carbon, - £156.70
- Free postage - New and Used
- Free postage - New and Used
Carbon dioxide sensor modules - sensor, - £41.38
Sensor module compact • Accuracy 50ppm reading • Item type carbon - Free postage - New and Used
Sensor module compact • Accuracy 50ppm reading • Item type carbon - Free postage - New and Used
Carbon dioxide detector - detector, co2 - £12.29
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
Ens160 aht21 air - aht21, quality - £7.69
Ens160 digital multi • Gas sensor specially • Indoor air quality - Free postage - New and Used
Ens160 digital multi • Gas sensor specially • Indoor air quality - Free postage - New and Used
5in1 portable carbon dioxide - 5in1, - £11.69
Torque ball hand • Exerciser grip strength • Trainer forearm strengthener - Free postage - New and Used
Torque ball hand • Exerciser grip strength • Trainer forearm strengthener - Free postage - New and Used
Portable lcd co2 meter - 1, - £12.99
Specification color black • White optional co2 • Measuring range 400 - Free postage - New and Used
Specification color black • White optional co2 • Measuring range 400 - Free postage - New and Used
2026 spider farmer genius - farmer, - £50.99
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
Co2 carel gas detector - co2, - £200.00
Brand new carel • Co2 leak detector • Air quality sensor - Free postage - New and Used
Brand new carel • Co2 leak detector • Air quality sensor - Free postage - New and Used
Air quality tester co2 hcho - ⁺air, - £29.64
Features hcho comparison • Function can compare • Values various places - Free postage - New and Used
Features hcho comparison • Function can compare • Values various places - Free postage - New and Used
Trend co2 transmitter - 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
Portable co2 meter air - 1, - £10.45
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
Portable air quality - portable, 6 - £14.79
Co2 indication 799ppm • Green flashing 1200 • 800 1199ppm yellow - Free postage - New and Used
Co2 indication 799ppm • Green flashing 1200 • 800 1199ppm yellow - Free postage - New and Used
Co2 tvoc air quality - tvoc, meter - £11.99
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
Tvoc co2 meter air - tvoc, - £16.19
- Free postage - New and Used
- Free postage - New and Used
Inkbird bluetooth air quality - inkbird, - £58.49
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
Co2 meter air - meter, quality - £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
Co2 sensor module - ⁺co2, - £35.58
Stable outputs have • Ttl output signal • Air quality sensor - Free postage - New and Used
Stable outputs have • Ttl output signal • Air quality sensor - Free postage - New and Used
Carbon dioxide sensor - ⁺carbon, - £36.24
Sensor module compact • Accuracy 50ppm reading • Item type carbon - Free postage - New and Used
Sensor module compact • Accuracy 50ppm reading • Item type carbon - Free postage - New and Used
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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 £200 — giving you a wide budget spread to work with. The average price of £37.15 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.