Air Detector(353)
Uses item details. Price when purchased online
Best seller LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack) From $35.97
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From$3597
LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack)
45 out of 5 Stars. 4 reviews
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Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder $129.99
Sponsored
$12999
current price $129.99Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder
Best seller Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47
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From$2747
Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
18324.7 out of 5 Stars. 1832 reviews
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Veevvio Handheld 3-in-1 Carbon Monoxide Detector, Temperature & Humidity Monitor – Portable Electrochemical Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester $29.99 Was $39.99
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Now$2999
current price Now $29.99, Was $39.99$39.99
Veevvio Handheld 3-in-1 Carbon Monoxide Detector, Temperature & Humidity Monitor – Portable Electrochemical Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester
95 out of 5 Stars. 9 reviews
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M Buder Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Quality Tester Meter, LCD Display, Carbon Dioxide Monitor for Home Office, White From $17.19
From$1719
M Buder Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Quality Tester Meter, LCD Display, Carbon Dioxide Monitor for Home Office, White
Best seller Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47
3 options
Available in additional 3 optionsFrom$2747
Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
18324.7 out of 5 Stars. 1832 reviews
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Clearance Newentor CO2 Monitor, Indoor Air Quality Meters, Real-Time Temperature & Humidity Monitor, Carbon Dioxide Detector with Alerts, Alarm Clock, for Home, Office, and Greenhouse Use, Black
Newentor CO2 Monitor, Indoor Air Quality Meters, Real-Time Temperature & Humidity Monitor, Carbon Dioxide Detector with Alerts, Alarm Clock, for Home, Office, and Greenhouse Use, Black
494.4 out of 5 Stars. 49 reviews
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6 in 1 Portable Steadfast Haven Air Quality Detector Plug in with HD Screen, Accuracy Sensors, Display Temperature Humidity, Magnetic Mount, Built-in Battery Backup, for Home, RV,Car, Travel (White) From $39.99
From$3999
6 in 1 Portable Steadfast Haven Air Quality Detector Plug in with HD Screen, Accuracy Sensors, Display Temperature Humidity, Magnetic Mount, Built-in Battery Backup, for Home, RV,Car, Travel (White)
Clearance 5-In-1 Smoke And Gas Detector, Digital Display Home Safety Monitor, 1 Pack Was $24.99
5-In-1 Smoke And Gas Detector, Digital Display Home Safety Monitor, 1 Pack
10-in-1 Air Quality Monitor Formaldehyde Temperature Humidity Tester Formaldehyde CO 2 Detector for Indoor/Outdoor White,1 * Air Quality Monitor,White $21.38
$2138
current price $21.3810-in-1 Air Quality Monitor Formaldehyde Temperature Humidity Tester Formaldehyde CO 2 Detector for Indoor/Outdoor White,1 * Air Quality Monitor,White
Veevvio Handheld 3-in-1 Carbon Monoxide Detector, Temperature & Humidity Monitor – Portable Electrochemical CO Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester $29.99
Sponsored
$2999
current price $29.99Veevvio Handheld 3-in-1 Carbon Monoxide Detector, Temperature & Humidity Monitor – Portable Electrochemical CO Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester
65 out of 5 Stars. 6 reviews
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Clearance Newentor CO2 Monitor, Indoor Air Quality Meters, Real-Time Temperature & Humidity Monitor, Carbon Dioxide Detector with Alerts, Alarm Clock, for Home, Office, and Greenhouse Use, Black From $49.99
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From$4999
Newentor CO2 Monitor, Indoor Air Quality Meters, Real-Time Temperature & Humidity Monitor, Carbon Dioxide Detector with Alerts, Alarm Clock, for Home, Office, and Greenhouse Use, Black
494.4 out of 5 Stars. 49 reviews
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M Buder Multifunctional Air Quality Monitor HCHO TVOC CO2 Detector LCD Digital Display (14.8 x 7 cm / 5.8 x 2.8 inches) $38.99
$3899
current price $38.99M Buder Multifunctional Air Quality Monitor HCHO TVOC CO2 Detector LCD Digital Display (14.8 x 7 cm / 5.8 x 2.8 inches)
Reduced price 6-in-1 Portable Air Quality Monitor, Environment Detector,HD Display Temperature Humidity,Built-in Battery,High Accuracy Sensors for Home, RV,Hotel,Camping,Car,Travel,Black,1 packs From $35.99
From$3599
6-in-1 Portable Air Quality Monitor, Environment Detector,HD Display Temperature Humidity,Built-in Battery,High Accuracy Sensors for Home, RV,Hotel,Camping,Car,Travel,Black,1 packs
IQAir Air Quality Monitor Indoor, White, Swiss Design, Professional Grade,1 Count per Pack, Assembled Product Height 3.5 in
2 options
Available in additional 2 optionsIQAir Air Quality Monitor Indoor, White, Swiss Design, Professional Grade,1 Count per Pack, Assembled Product Height 3.5 in
1304.8 out of 5 Stars. 130 reviews
Rollback Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen $24.37 Was $28.96
Now$2437
current price Now $24.37, Was $28.96$28.96
Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen
1264.5 out of 5 Stars. 126 reviews
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Air Quality Monitor,Environment Detector for Indoor,6-in-1 Portable Digital Monitor with Multi Sensor,Dual Power Supply for Home,RV,Hotel,Outdoor Travel From $19.88
From$1988
Air Quality Monitor,Environment Detector for Indoor,6-in-1 Portable Digital Monitor with Multi Sensor,Dual Power Supply for Home,RV,Hotel,Outdoor Travel
Fil-fresh 5 in 1 Air Quality Monitor Indoor with Real-Time Temp, Humidity & Clock Display Portable CO2 AQI Detector for Home, Office, Car $22.99
$2299
current price $22.99Fil-fresh 5 in 1 Air Quality Monitor Indoor with Real-Time Temp, Humidity & Clock Display Portable CO2 AQI Detector for Home, Office, Car
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Yajisi CO2 Air Detector Carbon Dioxide Monitor Agricultural Greenhouse Monitor 140x125x42mm / 5.5x4.9x1.7 inches White
Yajisi CO2 Air Detector Carbon Dioxide Monitor Agricultural Greenhouse Monitor 140x125x42mm / 5.5x4.9x1.7 inches White
Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White $18.20
$1820
current price $18.20Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White
VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, Carbon Dioxide Detector for Bedside, Home, Office, Car, Lightweight & Portable $37.99
Sponsored
$3799
current price $37.99VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, Carbon Dioxide Detector for Bedside, Home, Office, Car, Lightweight & Portable
11 out of 5 Stars. 1 reviews
White ABS mini 3-in-1 air quality detector-PM2.5/real-time monitoring of temperature and humidity Laser sensor + three-color over-standard alarm0-999g/m3 range $53.60
$5360
current price $53.60White ABS mini 3-in-1 air quality detector-PM2.5/real-time monitoring of temperature and humidity Laser sensor + three-color over-standard alarm0-999g/m3 range
GJX 2026 New 6 in 1 Multifunctional Portable Air Quality Detector Pm2.5 Pm10 Hcho Tvoc Co Co2 Formaldehyde Monitor Lcd Large Screen Display,Widely Use $20.31
$2031
current price $20.31GJX 2026 New 6 in 1 Multifunctional Portable Air Quality Detector Pm2.5 Pm10 Hcho Tvoc Co Co2 Formaldehyde Monitor Lcd Large Screen Display,Widely Use
BT-5800N Formaldehyde Gas Quality Detector Rechargeable Battery Powered Air Quality Tester To For Indoor, Outdoor $174.52
$17452
current price $174.52BT-5800N Formaldehyde Gas Quality Detector Rechargeable Battery Powered Air Quality Tester To For Indoor, Outdoor
Wifi Multifunctional Air Quality Detector PM2.5 CO CO2 Temperature Humidity Air Quality Monitor
Wifi Multifunctional Air Quality Detector PM2.5 CO CO2 Temperature Humidity Air Quality Monitor
Best seller LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack) From $35.97
3 options
Available in additional 3 optionsFrom$3597
LUXY SONIC 4-in-1 Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV(1 Pack)
45 out of 5 Stars. 4 reviews
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MOMOJIA Air Quality Tester Detects 8 Kind Air Pollutants CO2, TVOC Detectors, Formaldehyde Tester Temperature and Humidity From $42.69
From$4269
MOMOJIA Air Quality Tester Detects 8 Kind Air Pollutants CO2, TVOC Detectors, Formaldehyde Tester Temperature and Humidity
Nieyigj Portable LED Display PM2.5 Detector Multifunctional Air Quality Tester with Temperature Humidity Sensor [cite: 3] $49.74
![Nieyigj Portable LED Display PM2.5 Detector Multifunctional Air Quality Tester with Temperature Humidity Sensor [cite: 3]](https://i5.walmartimages.com/seo/Nieyigj-Portable-LED-Display-PM2-5-Detector-Multifunctional-Air-Quality-Tester-with-Temperature-Humidity-Sensor-cite-3_aff73ac9-e351-4a19-9468-be02c4ef8239.0ad2a7db064a87f14fd011c17571d4f6.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$4974
current price $49.74Nieyigj Portable LED Display PM2.5 Detector Multifunctional Air Quality Tester with Temperature Humidity Sensor [cite: 3]
GJX 2026 New 6-In-1 Air Quality Monitor Pm2.5, Co2, Formaldehyde (Hcho), Tvoc, Co & Temperature Detector | Portable Home & Office Air Tester with Real-Time Display $20.65
$2065
current price $20.65GJX 2026 New 6-In-1 Air Quality Monitor Pm2.5, Co2, Formaldehyde (Hcho), Tvoc, Co & Temperature Detector | Portable Home & Office Air Tester with Real-Time Display
4-in-1 Indoor Air Quality Monitor – Plug-in CO & Gas Detector with HD Digital Display, Ideal for Home Kitchens, Hotel Rooms, RV Camping & Commercial Spaces
4-in-1 Indoor Air Quality Monitor – Plug-in CO & Gas Detector with HD Digital Display, Ideal for Home Kitchens, Hotel Rooms, RV Camping & Commercial Spaces
18-in-1 Air Quality Monitor Air Quality Tester Pm2.5 Data Storage Download Air Quality Carbon Dioxide Detector White $27.13
$2713
current price $27.1318-in-1 Air Quality Monitor Air Quality Tester Pm2.5 Data Storage Download Air Quality Carbon Dioxide Detector White
Portable CO2 Detector 3-in-1 Carbon Monoxide Sensor | Handheld Indoor Air Quality Monitor | Measures CO2 Levels, Temperature, Humidity | Rechargeable | Compact | For Home, Car, RV | 85x51x17mm $15.67
$1567
current price $15.67Portable CO2 Detector 3-in-1 Carbon Monoxide Sensor | Handheld Indoor Air Quality Monitor | Measures CO2 Levels, Temperature, Humidity | Rechargeable | Compact | For Home, Car, RV | 85x51x17mm
14 out of 5 Stars. 1 reviews
Tester Multifunctional Air Quality Detector PM2.5 CO CO2 Temperature Humidity Air Quality Monitor From $28.51
From$2851
Tester Multifunctional Air Quality Detector PM2.5 CO CO2 Temperature Humidity Air Quality Monitor
9 In 1 Air Quality Tester Clear Display Large Digital Screen With Backlight CO2 PM2.5 Air Detector White $32.35
$3235
current price $32.359 In 1 Air Quality Tester Clear Display Large Digital Screen With Backlight CO2 PM2.5 Air Detector White
6-in-1 Air Quality Monitor, Large Screen Detector for PM2.5 HCHO TVOC CO CO2, Portable From $20.87
From$2087
6-in-1 Air Quality Monitor, Large Screen Detector for PM2.5 HCHO TVOC CO CO2, Portable
Digital Gas Detector Oxygen Meter O2 Sound Light Alarm Gas Monitor Air Quality Meter with Temperature LCD Display
Digital Gas Detector Oxygen Meter O2 Sound Light Alarm Gas Monitor Air Quality Meter with Temperature LCD Display
Aoresac Gas Monitor,Alarm Air Quality CO Monitor Toxic Air Quality Tester Meter Tester Analyzer Monitor Toxic LCD Tester Analyzer Portable Sound Vibration Alarm CO Toxic Reable Toxic Reable LCD WYAN $106.56
$10656
current price $106.56Aoresac Gas Monitor,Alarm Air Quality CO Monitor Toxic Air Quality Tester Meter Tester Analyzer Monitor Toxic LCD Tester Analyzer Portable Sound Vibration Alarm CO Toxic Reable Toxic Reable LCD WYAN
10 in 1 Air Quality Monitor Indoor Portable Smart Tester for CO2 TVOC PM2.5 PM1.0 PM10 HCHO Detection Humidity for Home Cars Plants Pets
10 in 1 Air Quality Monitor Indoor Portable Smart Tester for CO2 TVOC PM2.5 PM1.0 PM10 HCHO Detection Humidity for Home Cars Plants Pets
6 In 1 Air Quality Monitor Multifunctional Air Detector Formaldehyde Detector $48.60
$4860
current price $48.606 In 1 Air Quality Monitor Multifunctional Air Detector Formaldehyde Detector
3-in-1 Portable CO2 Meter, Handheld Air Quality Detector with Carbon Monoxide Sensor and Temperature Humidity Monitor for Home Office Car and Travel, 3.35x2.01x0.67in $18.99
$1899
current price $18.993-in-1 Portable CO2 Meter, Handheld Air Quality Detector with Carbon Monoxide Sensor and Temperature Humidity Monitor for Home Office Car and Travel, 3.35x2.01x0.67in
VVQ 4 in 1 Gas Detector, CO Carbon Monoxide Meter Temperature Humidity Monitor, Portable Air Quality Tester with Alarm Flashlight for Home Kitchen Camping, Handheld Multi Gas Analyzer for Safety
VVQ 4 in 1 Gas Detector, CO Carbon Monoxide Meter Temperature Humidity Monitor, Portable Air Quality Tester with Alarm Flashlight for Home Kitchen Camping, Handheld Multi Gas Analyzer for Safety
Steadfast Haven 6-in-1 Air Quality Monitor Plug in HD Display Temperature Humidity has a Built in Rechargeable Battery (Black)
Steadfast Haven 6-in-1 Air Quality Monitor Plug in HD Display Temperature Humidity has a Built in Rechargeable Battery (Black)
Indoor PV28-AW Smart WIFI Mini CO2 Detector, Portable 3-in-1 Indoor Air Quality Monitor, Digital CO2 Temperature Humidity Meter Monitor Carbon Dioxide Detector Measuring Range $40.82
$4082
current price $40.82Indoor PV28-AW Smart WIFI Mini CO2 Detector, Portable 3-in-1 Indoor Air Quality Monitor, Digital CO2 Temperature Humidity Meter Monitor Carbon Dioxide Detector Measuring Range
OVTSC 5-in-1 Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature Tester Multifunctional Indoor Monitor Meter White (5.51 inches / 14 cm)
OVTSC 5-in-1 Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature Tester Multifunctional Indoor Monitor Meter White (5.51 inches / 14 cm)
MOMOJIA Small Air Quality Detectors with High Accuracy Technology ABS for Measuring Multiple Pollutants in Various Setting From $35.69
From$3569
MOMOJIA Small Air Quality Detectors with High Accuracy Technology ABS for Measuring Multiple Pollutants in Various Setting
2026 New 4-in-1 Gas Detector, CO and Natural Gas Monitor with Digital Display, Home Safety Alert Device for Kitchen, Garage, Office,1Pc Was $24.99
2026 New 4-in-1 Gas Detector, CO and Natural Gas Monitor with Digital Display, Home Safety Alert Device for Kitchen, Garage, Office,1Pc
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