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Co2 sensor

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Home / Test Meters & Detectors / Co2 sensor refurbished & used for sale | For Sale UK
Air quality monitor - in,

Air quality monitor - in,

£13.95
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Siterwell carbon dioxide - carbon,

Siterwell carbon dioxide - carbon,

£4.38
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Inkbird digital co2 - inkbird,

Inkbird digital co2 - inkbird,

£99.00
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4in1 carbon monoxide - monoxide, co2

4in1 carbon monoxide - monoxide, co2

£29.95
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Air quality monitor - 6, 1

Air quality monitor - 6, 1

£13.78
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Anton vent check handheld - vent,

Anton vent check handheld - vent,

£186.00
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5in co2 meter air - 1,

5in co2 meter air - 1,

£10.48
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5in1 air quality monitor - air,

5in1 air quality monitor - air,

£11.99
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Air quality monitor - in, quality-monitor

Air quality monitor - in, quality-monitor

£11.98
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Inkbird indoor air quality - indoor,

Inkbird indoor air quality - indoor,

£64.99
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Co2 air quality - air, monitor

Co2 air quality - air, monitor

£6.52
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Portable co2 detector mini - co2,

Portable co2 detector mini - co2,

£22.49
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Co2 tvoc air - 5,

Co2 tvoc air - 5,

£9.59
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Mitsubishi electric co2 sensor - co2,

Mitsubishi electric co2 sensor - co2,

£135.90
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Flamefast gas sensor - gas, co2

Flamefast gas sensor - gas, co2

£52.70
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Temtop indoor air - c1+,

Temtop indoor air - c1+,

£28.92
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Portable co2 meter air - 1,

Portable co2 meter air - 1,

£10.99
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Air quality monitor co2 - air,

Air quality monitor co2 - air,

£15.99
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Air quality monitor - in,

Air quality monitor - in,

£14.99
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Sonoff airguard co2 detector - sonoff,

Sonoff airguard co2 detector - sonoff,

£35.88
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5in1 co2 meter air - 5in1,

5in1 co2 meter air - 5in1,

£7.99
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5in1 co2 meter temperature - 5in1,

5in1 co2 meter temperature - 5in1,

£11.99
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Aico ei1025 temperature - aico,

Aico ei1025 temperature - aico,

£68.30
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2026 spider farmer - 2026,

2026 spider farmer - 2026,

£42.99
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Sonoff co2 meter - sonoff,

Sonoff co2 meter - sonoff,

£35.88
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Temtop lkc1000s 2nd - temtop,

Temtop lkc1000s 2nd - temtop,

£59.95
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Air quality detector - 6, in-1

Air quality detector - 6, in-1

£13.98
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Air quality detector co2 - detector,

Air quality detector co2 - detector,

£13.68
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Mitsubishi wall mounted - mitsubishi,

Mitsubishi wall mounted - mitsubishi,

£208.70
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Mitsubishi electric - mitsubishi,

Mitsubishi electric - mitsubishi,

£146.30
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Cisco meraki mt15 - cisco,

Cisco meraki mt15 - cisco,

£250.00
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Breathing buildings co2 - breathing,

Breathing buildings co2 - breathing,

£49.00
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5in1 co2 meter air - meter, quality

5in1 co2 meter air - meter, quality

£11.99
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Carbon dioxide detector - carbon,

Carbon dioxide detector - carbon,

£12.39
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Air quality tester - in, 1

Air quality tester - in, 1

£40.00
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Flamefast gas sensor co2 new - gas,

Flamefast gas sensor co2 new - gas,

£21.50
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Co2 monitor air - co2, quality

Co2 monitor air - co2, quality

£12.99
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485 co2 sensor gas carbon - 485,

485 co2 sensor gas carbon - 485,

£40.34
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Scd41 co2 sensor module - scd41,

Scd41 co2 sensor module - scd41,

£31.90
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Sprintir co2 sensor - sprintir®-w,

Sprintir co2 sensor - sprintir®-w,

£177.50
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Inkbirdplus portable co2 - inkbirdplus,

Inkbirdplus portable co2 - inkbirdplus,

£22.99
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Air quality monitor - air,

Air quality monitor - air,

£11.95
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Air quality monitor - 6, 1

Air quality monitor - 6, 1

£11.94
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Air quality monitor - 6,

Air quality monitor - 6,

£13.99
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Netatmo smart indoor air - netatmo,

Netatmo smart indoor air - netatmo,

£44.75
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Portable co2 detector - detector, humidity

Portable co2 detector - detector, humidity

£18.62
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Air quality detector - air,

Air quality detector - air,

£17.99
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Analox ax60 co2 sensor with - ax60+,

Analox ax60 co2 sensor with - ax60+,

£414.70
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Sensor temperature and - sensor,,

Sensor temperature and - sensor,,

£50.99
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Air quality monitor co2 - 8-in-1,

Air quality monitor co2 - 8-in-1,

£28.98
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Air quality monitor - 1,

Air quality monitor - 1,

£13.79
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Nuaire co2rm es co2rmpp - nuaire, es-co2rm

Nuaire co2rm es co2rmpp - nuaire, es-co2rm

£26.70
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4in1 carbon monoxide - monoxide, co2

4in1 carbon monoxide - monoxide, co2

£35.99
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Inkbirdplus portable co2 - portable,

Inkbirdplus portable co2 - portable,

£17.21
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5in1 co2 meter air - 5in1,

5in1 co2 meter air - 5in1,

£8.99
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Sontay co2 622 duct - sontay,

Sontay co2 622 duct - sontay,

£143.99
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Portable 510a co2 - portable, carbon

Portable 510a co2 - portable, carbon

£34.99
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Radon detector carbon dioxide - detector,

Radon detector carbon dioxide - detector,

£26.82
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Airbomz co2 dispenser - airbomz, maxi

Airbomz co2 dispenser - airbomz, maxi

£59.99
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Sontay co2 - sontay, gs-co2-w,

Sontay co2 - sontay, gs-co2-w,

£10.80
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Ccs811 cjmcu 811 - cjmcu-811, co2

Ccs811 cjmcu 811 - cjmcu-811, co2

£8.65
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Inkbird bluetooth co2 detector - inkbird,

Inkbird bluetooth co2 detector - inkbird,

£29.99
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Air quality monitor - 1,

Air quality monitor - 1,

£14.99
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Pro leaf co2 - pro-leaf,

Pro leaf co2 - pro-leaf,

£81.99
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Air quality monitor - 6, 1

Air quality monitor - 6, 1

£13.96
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Icarb co2 gas - icarb, module

Icarb co2 gas - icarb, module

£33.99
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Aranet4 home wireless - aranet4,

Aranet4 home wireless - aranet4,

£164.99
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Co2 sensor capnostat - co2, 281718

Co2 sensor capnostat - co2, 281718

£103.66
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Inkbrid co2 controller - inkbrid,

Inkbrid co2 controller - inkbrid,

£99.99
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Siterwell co2 detector - siterwell,

Siterwell co2 detector - siterwell,

£5.97
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Bluepoint medical capno - medical, true

Bluepoint medical capno - medical, true

£149.99
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Pm2 5 carbon dioxide - pm2.5,

Pm2 5 carbon dioxide - pm2.5,

£15.29
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Qingping air quality - qingping, monitor

Qingping air quality - qingping, monitor

£89.99
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Mitsubishi wall mounted - mitsubishi,

Mitsubishi wall mounted - mitsubishi,

£146.30
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Co2 digital meter humidity - meter,

Co2 digital meter humidity - meter,

£11.99
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5in1 co2 meter - co2,

5in1 co2 meter - co2,

£13.09
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Professional digital - professional,

Professional digital - professional,

£17.79
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Sontay co2 sensor - sontay,

Sontay co2 sensor - sontay,

£24.54
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Air quality monitor - quality,

Air quality monitor - quality,

£10.80
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Aico ei3028 heat - ei3028,

Aico ei3028 heat - ei3028,

£26.70
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Radon detector carbon - detector,

Radon detector carbon - detector,

£25.09
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Inkbird bluetooth air quality - air,

Inkbird bluetooth air quality - air,

£64.99
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Inkbird bluetooth air quality - air,

Inkbird bluetooth air quality - air,

£64.99
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Inkbird bluetooth co2 detector - inkbird,

Inkbird bluetooth co2 detector - inkbird,

£69.99
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Co2 meter carbon - meter,

Co2 meter carbon - meter,

£16.15
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Air quality monitor - in,

Air quality monitor - in,

£13.98
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Mainstream co2 sensor - mainstream,

Mainstream co2 sensor - mainstream,

£120.00
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Air quality monitor - quality,

Air quality monitor - quality,

£11.99
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Inkbird co2 detector iam - inkbird, iam-t2

Inkbird co2 detector iam - inkbird, iam-t2

£59.99
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Air quality monitor - 6,

Air quality monitor - 6,

£15.69
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Co2 monitor for - monitor, wall

Co2 monitor for - monitor, wall

£22.79
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Esense senseair co2 - –,

Esense senseair co2 - –,

£21.45
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Pro leaf co2 controller - co2, &

Pro leaf co2 controller - co2, &

£274.95
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Inkbirdplus portable co2 - inkbirdplus,

Inkbirdplus portable co2 - inkbirdplus,

£27.88
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Mitsubishi electric co2 sensor - mitsubishi,

Mitsubishi electric co2 sensor - mitsubishi,

£135.90
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Z19 z19c z19b - mh-z19, mh-z19c

Z19 z19c z19b - mh-z19, mh-z19c

£28.99
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📊96 listings · from £4.38 · avg £53.06

Browse 96 co2 sensor listings currently in our index. Prices range from £4.38 to £414.7, with an average of £53.06. 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 £4.38, while premium listings can reach £414.7 — giving you a wide budget spread to work with. The average price of £53.06 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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