Air Detector(372)
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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100+ bought since yesterday 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
18304.7 out of 5 Stars. 1830 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
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$12999
current price $129.99Elitech ILD-100H HVAC Refrigerant Leak Detector Heated Diode Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder
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 $17.14
From$1714
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
6 in 1 Portable Steadfast Haven Air Quality Detector-with High Accuracy Dual Sensors, HD Screen, Display Temperature Humidity, Magnetic Mount, Built-in Battery Backup (1, Ivory) From $39.99
From$3999
6 in 1 Portable Steadfast Haven Air Quality Detector-with High Accuracy Dual Sensors, HD Screen, Display Temperature Humidity, Magnetic Mount, Built-in Battery Backup (1, Ivory)
10-in-1 Air Quality Monitor Formaldehyde Temperature Humidity Tester Formaldehyde CO 2 Detector for Indoor/Outdoor White,1 * Air Quality Monitor,White $21.73
$2173
current price $21.7310-in-1 Air Quality Monitor Formaldehyde Temperature Humidity Tester Formaldehyde CO 2 Detector for Indoor/Outdoor White,1 * Air Quality Monitor,White
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
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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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)
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 $53.99
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From$5399
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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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
Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen $28.96
$2896
current price $28.96Outdoor-Forest Brand, Carbon Monoxide Detector, Orange Color, LCD Screen
1264.5 out of 5 Stars. 126 reviews
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5-In-1 Smoke And Gas Detector, Digital Display Home Safety Monitor, 1 Pack
5-In-1 Smoke And Gas Detector, Digital Display Home Safety Monitor, 1 Pack
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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100+ bought since yesterday 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
18304.7 out of 5 Stars. 1830 reviews
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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
Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White $18.21
$1821
current price $18.21Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White
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)
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
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
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
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
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
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
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
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
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
Clearance 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 From $17.13
From$1713
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
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
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]
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
Clearance Virelaxpo 4 in 1 Gas Detector Air Quality Monitor Portable Gas Analyzer for Home Safety Indoor Air Monitoring Was $17.45
Virelaxpo 4 in 1 Gas Detector Air Quality Monitor Portable Gas Analyzer for Home Safety Indoor Air Monitoring
Multiunctional Air Quality Detectors with LCD Back light Air Quality Monitor Tool for Home Office Air Monitoring $17.19
$1719
current price $17.19Multiunctional Air Quality Detectors with LCD Back light Air Quality Monitor Tool for Home Office Air Monitoring
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
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
HCHO and TVOC Monitor Portable Detector Indoor Air Quality Monitor HCHO and TVOC Monitor with Audible Alarm LED Indicator for Home HVAC System $15.60
$1560
current price $15.60HCHO and TVOC Monitor Portable Detector Indoor Air Quality Monitor HCHO and TVOC Monitor with Audible Alarm LED Indicator for Home HVAC System
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 $37.52
$3752
current price $37.526 In 1 Air Quality Monitor Multifunctional Air Detector Formaldehyde Detector
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
Clearance 4 in 1 Gas Detector,CO CO2 Temp Humidity Monitoring,Precision 1ppm,0-1000ppm Range,Built-in 2000mAh Battery,Magnetic Back Panel,Portable with Flashlight,Air Quality Safety Tool Was $22.91
4 in 1 Gas Detector,CO CO2 Temp Humidity Monitoring,Precision 1ppm,0-1000ppm Range,Built-in 2000mAh Battery,Magnetic Back Panel,Portable with Flashlight,Air Quality Safety Tool
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
$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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LAZIOEGR Tuya WiFi Intelligent Air Quality Detector PM2.5 CO2 TVOC HCHO Temperature Humidity 6 In 1 Monitor Time Date Week Display Mobile APP Remote Viewing Desktop Alarm Clock $48.25
$4825
current price $48.25LAZIOEGR Tuya WiFi Intelligent Air Quality Detector PM2.5 CO2 TVOC HCHO Temperature Humidity 6 In 1 Monitor Time Date Week Display Mobile APP Remote Viewing Desktop Alarm Clock
Detector Monitor NH3 Air, Ammonia Tester Gas 0~100 PPM With Alarm Buzzer, Wall-Mounted Type,Humy&Temp Sensor Big Display $240.50
$24050
current price $240.50Detector Monitor NH3 Air, Ammonia Tester Gas 0~100 PPM With Alarm Buzzer, Wall-Mounted Type,Humy&Temp Sensor Big Display
CO2 Meter Detector Tuya Zigbee Intelligent Air Housekeeper 6-in-1 Air Quality Monitor PM2.5//TVOC/CO2/Temperature/Humidity Detector for Home Office $31.11
$3111
current price $31.11CO2 Meter Detector Tuya Zigbee Intelligent Air Housekeeper 6-in-1 Air Quality Monitor PM2.5//TVOC/CO2/Temperature/Humidity Detector for Home Office
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