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Co2 sensor

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Home / Test, Measurement & Inspection / Co2 sensor refurbished & used for sale | For Sale UK
Portable co2 meter air - 1,

Portable co2 meter air - 1,

£10.95 · Buy It Now

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Professional digital - professional,

Professional digital - professional,

£17.49 · Buy It Now

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Inkbird digital co2 controller - inkbird,

Inkbird digital co2 controller - inkbird,

£69.30 · Buy It Now

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Zehnder co2 sensor wall - zehnder,

Zehnder co2 sensor wall - zehnder,

£187.90 · Buy It Now

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Air quality detector - 6, in-1

Air quality detector - 6, in-1

£13.99 · Buy It Now

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Air quality monitor - 1,

Air quality monitor - 1,

£13.99 · Buy It Now

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Detector air quality - air/quality, dioxide

Detector air quality - air/quality, dioxide

£13.09 · Buy It Now

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Portable carbon dioxide - 1,

Portable carbon dioxide - 1,

£10.29 · Buy It Now

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Co2 meter air - meter, detector

Co2 meter air - meter, detector

£9.48 · Buy It Now

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Air quality monitor - 6, 1

Air quality monitor - 6, 1

£13.98 · Buy It Now

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Portable co2 detector - co2, mini

Portable co2 detector - co2, mini

£24.99 · Buy It Now

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Sonoff co2 meter smart fi - co2,

Sonoff co2 meter smart fi - co2,

£35.88 · Buy It Now

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Portable lcd co2 meter - 3,

Portable lcd co2 meter - 3,

£11.99 · Buy It Now

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Sonoff airguard co2 detector - sonoff,

Sonoff airguard co2 detector - sonoff,

£35.88 · Buy It Now

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Anton vent check handheld co2 - vent,

Anton vent check handheld co2 - vent,

£104.70 · Buy It Now

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Inkbird co2 controller - co2,

Inkbird co2 controller - co2,

£159.00 · Buy It Now

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Inkbird indoor air - air, quality

Inkbird indoor air - air, quality

£64.99 · Buy It Now

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Crowcon tetra gas - 3, t3

Crowcon tetra gas - 3, t3

£25.00 · Buy It Now

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Crowcon tetra gas - crowcon, t3

Crowcon tetra gas - crowcon, t3

£25.00 · Buy It Now

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Crowcon tetra gas - crowcon, 3

Crowcon tetra gas - crowcon, 3

£25.00 · Buy It Now

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Air quality monitor co2 - air,

Air quality monitor co2 - air,

£14.59 · Buy It Now

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2026 spider farmer genius - farmer, grow

2026 spider farmer genius - farmer, grow

£45.99 · Buy It Now

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Crowcon tetra gas - tetra,

Crowcon tetra gas - tetra,

£25.00 · Buy It Now

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Crowcon tetra gas - crowcon, 3

Crowcon tetra gas - crowcon, 3

£20.00 · Buy It Now

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In1 portable co2 meter air - portable,

In1 portable co2 meter air - portable,

£9.98 · Buy It Now

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Crowcon tetra gas - tetra, 3

Crowcon tetra gas - tetra, 3

£25.00 · Buy It Now

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Co2 digital meter humidity - co2,

Co2 digital meter humidity - co2,

£10.12 · Buy It Now

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Crowcon tetra gas - 3, t3

Crowcon tetra gas - 3, t3

£25.00 · Buy It Now

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Mitsubishi electric - mitsubishi,

Mitsubishi electric - mitsubishi,

£146.30 · Buy It Now

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Breathing buildings co2 - breathing,

Breathing buildings co2 - breathing,

£49.00 · Buy It Now

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Trend co2 transmitter sensor - trend,

Trend co2 transmitter sensor - trend,

£83.90 · Buy It Now

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Mitsubishi electric co2 sensor - mitsubishi,

Mitsubishi electric co2 sensor - mitsubishi,

£156.70 · Buy It Now

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Crowcon tetra gas - crowcon, 3

Crowcon tetra gas - crowcon, 3

£25.00 · Buy It Now

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5in1 co2 meter air quality - 5in1,

5in1 co2 meter air quality - 5in1,

£9.59 · Buy It Now

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Crowcon tetra gas - 3,

Crowcon tetra gas - 3,

£25.00 · Buy It Now

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Inkbird bluetooth co2 - bluetooth, detector

Inkbird bluetooth co2 - bluetooth, detector

£48.99 · Buy It Now

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3in1 portable carbon dioxide - portable,

3in1 portable carbon dioxide - portable,

£12.69 · Buy It Now

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Scd40 scd41 true co2 - scd41,

Scd40 scd41 true co2 - scd41,

£28.89 · Buy It Now

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Temtop m2000 air - m2000,

Temtop m2000 air - m2000,

£89.10 · Buy It Now

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Ubibot co2 monitor detector - co2,

Ubibot co2 monitor detector - co2,

£13.99 · Buy It Now

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Co2 monitor with temperature - monitor,

Co2 monitor with temperature - monitor,

£7.88 · Buy It Now

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Lcd co2 meter - air, quality

Lcd co2 meter - air, quality

£12.99 · Buy It Now

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Ens160 aht21 air - ens160+aht21, quality

Ens160 aht21 air - ens160+aht21, quality

£7.49 · Buy It Now

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Brandson co2 detector - brandson,

Brandson co2 detector - brandson,

£40.50 · Buy It Now

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4in1 carbon monoxide co2 - 4in1,

4in1 carbon monoxide co2 - 4in1,

£35.19 · Buy It Now

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Kidde carbon monoxide - kidde,

Kidde carbon monoxide - kidde,

£15.98 · Buy It Now

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Air quality monitor - 6,

Air quality monitor - 6,

£12.88 · Buy It Now

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Inkbird bluetooth air quality - inkbird,

Inkbird bluetooth air quality - inkbird,

£53.29 · Buy It Now

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Air quality co2 monitor - air,

Air quality co2 monitor - air,

£8.65 · Buy It Now

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Crowcon tetra gas - crowcon, t3

Crowcon tetra gas - crowcon, t3

£25.00 · Buy It Now

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Crowcon tetra gas - 3, t3

Crowcon tetra gas - 3, t3

£24.99 · Buy It Now

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Pro leaf co2 controller - pro-leaf,

Pro leaf co2 controller - pro-leaf,

£448.99 · Buy It Now

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Sonoff matter over smart - matter,

Sonoff matter over smart - matter,

£35.88 · Buy It Now

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Portable carbon dioxide - carbon,

Portable carbon dioxide - carbon,

£12.49 · Buy It Now

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Crowcon tetra gas - tetra, 3

Crowcon tetra gas - tetra, 3

£20.00 · Buy It Now

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Crowcon tetra gas - 3, t3

Crowcon tetra gas - 3, t3

£25.00 · Buy It Now

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Co2 meter temperature humidity - co2,

Co2 meter temperature humidity - co2,

£12.49 · Buy It Now

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Portable carbon dioxide - carbon,

Portable carbon dioxide - carbon,

£11.99 · Buy It Now

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Air quality detector co2 - detector,

Air quality detector co2 - detector,

£12.41 · Buy It Now

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Inkbird bluetooth air quality - inkbird,

Inkbird bluetooth air quality - inkbird,

£53.29 · Buy It Now

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Crowcon tetra gas - tetra,

Crowcon tetra gas - tetra,

£19.99 · Buy It Now

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Air quality meter tester - air,

Air quality meter tester - air,

£16.85 · Buy It Now

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Inkbird co2 detector - inkbird,

Inkbird co2 detector - inkbird,

£41.99 · Buy It Now

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Portable lcd co2 meter air - portable,

Portable lcd co2 meter air - portable,

£9.69 · Buy It Now

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Air quality monitor - 1,

Air quality monitor - 1,

£14.99 · Buy It Now

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Kkmoon e9194 co2 detector - e9194,

Kkmoon e9194 co2 detector - e9194,

£26.70 · Buy It Now

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Crowcon tetra gas - crowcon, t3

Crowcon tetra gas - crowcon, t3

£25.00 · Buy It Now

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Carbon dioxide detector - dioxide, co2

Carbon dioxide detector - dioxide, co2

£13.39 · Buy It Now

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Inch lcd co2 concentration - lcd,

Inch lcd co2 concentration - lcd,

£13.47 · Buy It Now

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Professional digital - professional,

Professional digital - professional,

£16.60 · Buy It Now

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Co2 meter digital - 1,

Co2 meter digital - 1,

£16.16 · Buy It Now

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Co2 detector monitor - co2,

Co2 detector monitor - co2,

£68.29 · Buy It Now

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Carbon dioxide detector - dioxide,

Carbon dioxide detector - dioxide,

£13.19 · Buy It Now

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Thermokon novos co2 temp rh - 3,

Thermokon novos co2 temp rh - 3,

£55.00 · Buy It Now

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Crowcon tetra gas - crowcon, t3

Crowcon tetra gas - crowcon, t3

£25.00 · Buy It Now

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Carbon dioxide detector co2 - dioxide,

Carbon dioxide detector co2 - dioxide,

£12.29 · Buy It Now

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View plus indoor - air, quality

View plus indoor - air, quality

£249.99 · Buy It Now

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Air quality monitor - 1,

Air quality monitor - 1,

£19.49 · Buy It Now

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6in1 air quality monitor - 6in1,

6in1 air quality monitor - 6in1,

£14.59 · Buy It Now

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Lcd co2 meter - in, 1

Lcd co2 meter - in, 1

£9.56 · Buy It Now

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Icarb co2 gas module with - icarb,

Icarb co2 gas module with - icarb,

£34.99 · Buy It Now

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Co2 meter carbon - carbon, dioxide

Co2 meter carbon - carbon, dioxide

£16.15 · Buy It Now

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Tfa dostmann airco2ntrol 5000 - dostmann,

Tfa dostmann airco2ntrol 5000 - dostmann,

£99.50 · Buy It Now

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5in1 air quality monitor - 5in1,

5in1 air quality monitor - 5in1,

£11.99 · Buy It Now

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4in1 carbon monoxide co2 - carbon,

4in1 carbon monoxide co2 - carbon,

£25.90 · Buy It Now

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Qingping air quality monitor - air,

Qingping air quality monitor - air,

£89.99 · Buy It Now

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Radon detector carbon - (white)radon,

Radon detector carbon - (white)radon,

£24.52 · Buy It Now

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Co2 gas sensor carbon dioxide - co2,

Co2 gas sensor carbon dioxide - co2,

£5.57 · Buy It Now

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Suntell aqs02 air quality - suntell, co2

Suntell aqs02 air quality - suntell, co2

£3.84 · Buy It Now

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Sontay co2 sensor - sontay,

Sontay co2 sensor - sontay,

£41.79 · Buy It Now

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Pro leaf co2 - pro-leaf, controller

Pro leaf co2 - pro-leaf, controller

£274.95 · Buy It Now

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5in1 co2 meter - 5in1, quality

5in1 co2 meter - 5in1, quality

£8.99 · Buy It Now

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Portable air quality - in, 1

Portable air quality - in, 1

£14.59 · Buy It Now

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Head gasket leak tester kit - tester,

Head gasket leak tester kit - tester,

£23.99 · Buy It Now

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Analox iii co2 sensor - 5s,

Analox iii co2 sensor - 5s,

£63.10 · Buy It Now

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Nuaire co2rm es co2rmpp - &, es-co2rmpp

Nuaire co2rm es co2rmpp - &, es-co2rmpp

£42.30 · Buy It Now

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📊96 listings · from £3.84 · avg £42.49
⚠️ These listings were last updated more than 21 days ago. Search for fresh listings

Browse 96 co2 sensor listings currently in our index. Prices range from £3.84 to £448.99, with an average of £42.49. 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 →

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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 96 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 £3.84, while premium listings can reach £448.99 — giving you a wide budget spread to work with. The average price of £42.49 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.

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