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Co2 monitor

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Home / Test Meters & Detectors / Co2 monitor refurbished & used for sale | For Sale USA
Co2 meter air quality monitor - co2,

Co2 meter air quality monitor - co2,

$13.01
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Etco2 capnograph respiration - capnograph,

Etco2 capnograph respiration - capnograph,

$299.00
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Extech co100 desktop indoor - extech,

Extech co100 desktop indoor - extech,

$69.99
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Temtop co2 monitor indoor - temtop,

Temtop co2 monitor indoor - temtop,

$49.99
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3in1 portable co2 - portable, 2s

3in1 portable co2 - portable, 2s

$8.39
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New co2 meter air quality - co2,

New co2 meter air quality - co2,

$12.64
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Co2 detector monitor - co2,

Co2 detector monitor - co2,

$20.10
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Birdie design indoor - indoor, co2

Birdie design indoor - indoor, co2

$75.00
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Co2 monitor 1 - 3-in-1,

Co2 monitor 1 - 3-in-1,

$23.95
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Portable co2 detector mini - detector,

Portable co2 detector mini - detector,

$28.79
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Co2meter rad 0102 remote co2 - co2meter, rad-0102

Co2meter rad 0102 remote co2 - co2meter, rad-0102

$90.00
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Air monitor co2 hcho - 1,

Air monitor co2 hcho - 1,

$18.97
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Co2 meter air quality - meter,

Co2 meter air quality - meter,

$16.16
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Co2meter rad 0102 remote co2 - remote,

Co2meter rad 0102 remote co2 - remote,

$179.99
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Vaisala reese scientific co2 - &,

Vaisala reese scientific co2 - &,

$279.20
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Extech co240 indoor air - co240,

Extech co240 indoor air - co240,

$72.99
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Co2 meter air - meter, monitor

Co2 meter air - meter, monitor

$13.40
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Vevor carbon dioxide monitor - vevor,

Vevor carbon dioxide monitor - vevor,

$26.46
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Birdie design indoor - birdie, 2.0

Birdie design indoor - birdie, 2.0

$74.99
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Birdie design indoor co2 - 2.0,

Birdie design indoor co2 - 2.0,

$65.44
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Gas co2 detector air monitor - gas,

Gas co2 detector air monitor - gas,

$39.99
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Inkbird air quality - air,

Inkbird air quality - air,

$70.79
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Temtop co2 monitor - temtop,

Temtop co2 monitor - temtop,

$22.00
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Inkbird smart air - 3-in-1,

Inkbird smart air - 3-in-1,

$34.99
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Co2 meter mini 1 - in,

Co2 meter mini 1 - in,

$39.99
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Air monitor co2 hcho - 5, in

Air monitor co2 hcho - 5, in

$19.19
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Birdie design indoor - indoor, co2

Birdie design indoor - indoor, co2

$90.00
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Inkbird co2 monitor air - inkbird,

Inkbird co2 monitor air - inkbird,

$71.99
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Vevor carbon dioxide - vevor,

Vevor carbon dioxide - vevor,

$96.01
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Airknight indoor air - airknight, 9-in-1

Airknight indoor air - airknight, 9-in-1

$100.00
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Air guardian - air-guardian, quality

Air guardian - air-guardian, quality

$75.00
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Crowcon gasman co2 carbon - gasman,

Crowcon gasman co2 carbon - gasman,

$75.00
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Temtop co2 monitor indoor - temtop,

Temtop co2 monitor indoor - temtop,

$34.95
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Co2 monitor 1 - monitor, 3-in-1

Co2 monitor 1 - monitor, 3-in-1

$38.00
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Sonoff co2 matter air - co2,

Sonoff co2 matter air - co2,

$39.99
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Co2 monitor lot - monitor,

Co2 monitor lot - monitor,

$188.09
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New air monitor - 1, co2

New air monitor - 1, co2

$18.83
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Air quality monitor - air,

Air quality monitor - air,

$22.90
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Co2 monitor carbon dioxide - co2,

Co2 monitor carbon dioxide - co2,

$21.63
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Eonix air quality - eonix,

Eonix air quality - eonix,

$69.88
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Air quality monitor - 5-in-1,

Air quality monitor - 5-in-1,

$23.74
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Co2 meter air - meter, quality

Co2 meter air - meter, quality

$18.39
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Co2 detector 1 air - 5,

Co2 detector 1 air - 5,

$17.32
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Aerosphere rvl01 commercial - aerosphere,

Aerosphere rvl01 commercial - aerosphere,

$350.00
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Gas co2 detector - gas, air

Gas co2 detector - gas, air

$50.39
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Airknight indoor air - 9-in-1,

Airknight indoor air - 9-in-1,

$58.00
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Co2 monitor alarm - monitor,

Co2 monitor alarm - monitor,

$539.99
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Air quality monitor co2 - 3-in-1,

Air quality monitor co2 - 3-in-1,

$21.78
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Portable co2 detector mini - co2,

Portable co2 detector mini - co2,

$26.99
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New co2 controller smart - controller,,

New co2 controller smart - controller,,

$100.00
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Vevor carbon dioxide - vevor,

Vevor carbon dioxide - vevor,

$103.35
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Newentor co2 monitor - monitor,, indoor

Newentor co2 monitor - monitor,, indoor

$40.99
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Temtop indoor air quality - air,

Temtop indoor air quality - air,

$99.99
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Lcd air quality monitor - lcd,

Lcd air quality monitor - lcd,

$15.92
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Switchbot co2 detector air - switchbot,

Switchbot co2 detector air - switchbot,

$39.95
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Co2 controller smart - co2, controller,

Co2 controller smart - co2, controller,

$129.00
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Airknight indoor air - airknight,

Airknight indoor air - airknight,

$55.00
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Air quality monitor - in,

Air quality monitor - in,

$48.99
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Qingping co2 monitor - qingping,

Qingping co2 monitor - qingping,

$38.00
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Extech co220 desktop indoor - extech,

Extech co220 desktop indoor - extech,

$39.99
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Air quality monitor - in,

Air quality monitor - in,

$19.04
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Inkbird portable co2 detector - inkbird,

Inkbird portable co2 detector - inkbird,

$69.95
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Co2 air detector semiconductor - air,

Co2 air detector semiconductor - air,

$13.78
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Air quality monitor - 5-in-1,

Air quality monitor - 5-in-1,

$14.97
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Vevor carbon dioxide - carbon, monitor

Vevor carbon dioxide - carbon, monitor

$30.85
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Air quality monitor - air,

Air quality monitor - air,

$24.99
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Protmex co2 detector - 6, 1

Protmex co2 detector - 6, 1

$28.79
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Indoor air quality - indoor,

Indoor air quality - indoor,

$59.00
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Air quality monitor - air,

Air quality monitor - air,

$134.99
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Temtop air quality - temtop, 6-in-1

Temtop air quality - temtop, 6-in-1

$129.99
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Newentor co2 monitor indoor - co2,

Newentor co2 monitor indoor - co2,

$34.99
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Switchbot meter pro co2 - switchbot,

Switchbot meter pro co2 - switchbot,

$39.00
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Air monitor co2 hcho - 5-in-1,

Air monitor co2 hcho - 5-in-1,

$19.48
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Carbon dioxide desktop iaq max - carbon, iaq-max

Carbon dioxide desktop iaq max - carbon, iaq-max

$50.00
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Air quality tester - air,

Air quality tester - air,

$50.00
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Co2 meter san personal - co2,

Co2 meter san personal - co2,

$207.99
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Professional indoor air - professional,

Professional indoor air - professional,

$14.92
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Smart co2 monitor - monitor, air

Smart co2 monitor - monitor, air

$76.70
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Langkou 1 indoor air - indoor,

Langkou 1 indoor air - indoor,

$22.88
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Air monitor co2 - 1, hcho

Air monitor co2 - 1, hcho

$19.79
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Airknight indoor air - 9-in-1,

Airknight indoor air - 9-in-1,

$114.99
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Aerosphere rvl02 commercial - aerosphere, rvl02-17

Aerosphere rvl02 commercial - aerosphere, rvl02-17

$195.00
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Temtop co2 monitor indoor air - co2,

Temtop co2 monitor indoor air - co2,

$47.83
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Inkbirdplus indoor co2 - indoor, meter

Inkbirdplus indoor co2 - indoor, meter

$51.99
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Airknight ak1000 1 - 9-in-1, air

Airknight ak1000 1 - 9-in-1, air

$69.99
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Co2 regulator carbon dioxide - regulator,,

Co2 regulator carbon dioxide - regulator,,

$44.99
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Airknight indoor air - 9-in-1,

Airknight indoor air - 9-in-1,

$114.99
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10in1 18in1 air quality - 10in1,

10in1 18in1 air quality - 10in1,

$31.47
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Ynak air quality - 16, 1

Ynak air quality - 16, 1

$49.99
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233 co2 detector - co2, detector,co2

233 co2 detector - co2, detector,co2

$38.55
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Air quality monitor - in,

Air quality monitor - in,

$36.57
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Forensics carbon dioxide - carbon,

Forensics carbon dioxide - carbon,

$50.30
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Breathe air quality monitor - quality,

Breathe air quality monitor - quality,

$109.99
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Air quality monitor co2 - quality,

Air quality monitor co2 - quality,

$17.24
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Air quality tester monitor - quality, co2

Air quality tester monitor - quality, co2

$100.00
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Gas flow meter tester - flow, co2

Gas flow meter tester - flow, co2

$174.44
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📊96 listings · from $8.39 · avg $70.17
⚠️ These listings were last updated more than 9 days ago. Search for fresh listings

Browse 96 co2 monitor listings currently in our index. Prices range from $8.39 to $539.99, with an average of $70.17. 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 monitor →

Try this: elcometer | vtvm | vu meter | krautkramer | boonton meter | cadillac gage | elcometer 456 | endress hauser | chatillon gauge | hach colorimeter

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Everything you need to know about co2 monitor

Whether you are looking for a brand-new or second-hand co2 monitor, 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 $8.39, while premium listings can reach $539.99 — giving you a wide budget spread to work with. The average price of $70.17 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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