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Safety Equipment and GearAir QualityAlarm SystemsAll Home SecurityBathroom PlumbingCarbon Monoxide AlarmsCaulking & SealantsElectrical ToolsEmergency SuppliesFire SafetyHand ToolsHome SafetyKiddePaint Supplies & ToolsPersonal PreparednessSafety DetectorsSealants, Fillers and AdhesivesStorm & Flood PrepTestersWildfire Prep
Air Detector(402)
Uses item details. Price when purchased online
X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack From $42.99
Sponsored
From$4299
X-Sense Wireless Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery Alarm With Display, Over 820 ft Transmission Range, SC07-W, 3-Pack
3774.6 out of 5 Stars. 377 reviews
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
Sponsored
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)
105 out of 5 Stars. 10 reviews
LUXY SONIC 4-in-1 Carbon-Monoxide（C O）Alarm, 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
Sponsored
From$3597
LUXY SONIC 4-in-1 Carbon-Monoxide（C O）Alarm, Combustible Gas & C O Detector with Temperature and Humidity Display, Plug-in Portable Gas Leak Alarm for Home, Apartment, Hotel, Camping, RV（1 Pack）
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
25 out of 5 Stars. 2 reviews
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 $17.05
From$1705
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
7 in 1 Multi-Functional WIFI Air Quality Detector with 7-Inch LCD Large Screen, Carbon Dioxide Temperature Humidity CO2 TVOC PM2.5 Gas Monitor (10 x 8.7 Inches / 25 x 22 cm) $151.23
$15123
current price $151.237 in 1 Multi-Functional WIFI Air Quality Detector with 7-Inch LCD Large Screen, Carbon Dioxide Temperature Humidity CO2 TVOC PM2.5 Gas Monitor (10 x 8.7 Inches / 25 x 22 cm)
BOKYAN Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Tester Meter For Home Office White (5.51 inches / 14.00 cm) $21.05
$2105
current price $21.05BOKYAN Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Tester Meter For Home Office White (5.51 inches / 14.00 cm)
M Buder Infrared Air Quality Monitor CO2 Carbon Dioxide Detector Temperature Humidity Meter Built-in 1200mAh Rechargeable Battery $19.91
$1991
current price $19.91M Buder Infrared Air Quality Monitor CO2 Carbon Dioxide Detector Temperature Humidity Meter Built-in 1200mAh Rechargeable Battery
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 Was $79.99
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
504.5 out of 5 Stars. 50 reviews
M Buder Multifunctional Air Quality Monitor HCHO TVOC CO2 Detector LCD Digital Display (14.8 x 7 cm / 5.8 x 2.8 inches) $41.04
$4104
current price $41.04M 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,silver,3 pack From $35.99
Sponsored
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,silver,3 pack
100+ bought since yesterday Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators From $27.47
Sponsored
From$2747
Kidde AC Plug-In Carbon Monoxide Detector with Battery Backup, CO Alarm with LED Light Indicators
18724.7 out of 5 Stars. 1872 reviews
3 Pcs 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
3 Pcs 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
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
1304.4 out of 5 Stars. 130 reviews
Portable 5-in-1 Air Quality Detector CO2 TVOC HCHO Meter, Real-Time Digital Temperature & Humidity Monitor (14 x 10 in / 35.6 x 25.4 cm) $24.08
$2408
current price $24.08Portable 5-in-1 Air Quality Detector CO2 TVOC HCHO Meter, Real-Time Digital Temperature & Humidity Monitor (14 x 10 in / 35.6 x 25.4 cm)
Portable Air Monitor Indoor Outdoor, 5-in-1 Professional Portable TVOC Detector, HCHO Humidity Temperature Meter, Orange
Portable Air Monitor Indoor Outdoor, 5-in-1 Professional Portable TVOC Detector, HCHO Humidity Temperature Meter, Orange
YAHHU Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Quality Tester Meter White (14.00 x 10.00 x 5.00 inches / 35.6 x 25.4 x 12.7 cm) $20.05
$2005
current price $20.05YAHHU Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Indoor Air Quality Tester Meter White (14.00 x 10.00 x 5.00 inches / 35.6 x 25.4 x 12.7 cm)
YAHHU Infrared Air Quality Monitor CO2 Carbon Dioxide Detector Temperature Humidity Meter Built-in 1200mAh Rechargeable Battery 3.54 inches / 9 cm White $23.91
$2391
current price $23.91YAHHU Infrared Air Quality Monitor CO2 Carbon Dioxide Detector Temperature Humidity Meter Built-in 1200mAh Rechargeable Battery 3.54 inches / 9 cm White
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
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 From $49.99 Was $79.99
Sponsored
From$4999
$79.99
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
504.5 out of 5 Stars. 50 reviews
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
Sponsored
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
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)
105 out of 5 Stars. 10 reviews
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
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
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
Professional Multifunctional Air Quality Monitor & Indoor CO2 Detector with LCD Screen & Time Display (17.00 x 15.00 x 9.00 inches / 43.2 x 38.1 x 22.9 cm) $99.57
$9957
current price $99.57Professional Multifunctional Air Quality Monitor & Indoor CO2 Detector with LCD Screen & Time Display (17.00 x 15.00 x 9.00 inches / 43.2 x 38.1 x 22.9 cm)
Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White $18.05
$1805
current price $18.05Riousery Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature 5 in 1 Multifunctional Tester Meter White
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
OVTSC 7-in-1 Standard Indoor Air Quality Monitor, CO2 TVOC HCHO PM2.5 Detector, Temperature & Humidity Sensor AQI Meter for Home Office (4.7x4.3x2.0 inches / 12x11x5 cm) - White From $33.58
From$3358
OVTSC 7-in-1 Standard Indoor Air Quality Monitor, CO2 TVOC HCHO PM2.5 Detector, Temperature & Humidity Sensor AQI Meter for Home Office (4.7x4.3x2.0 inches / 12x11x5 cm) - White
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
18724.7 out of 5 Stars. 1872 reviews
In 50+ people's carts 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
85 out of 5 Stars. 8 reviews
Elitech Infrared Refrigerant Leak Detector HVAC Halogen Gas AC Sniffer $190.99
Sponsored
$19099
current price $190.99Elitech Infrared Refrigerant Leak Detector HVAC Halogen Gas AC Sniffer
6 in 1 Air Quality Detector with Direct Plug-in Power, Magnetic Base Installation, Built-in Battery Backup, Accurate Environment Tester for Home Car Travel(3 Pack) $73.88
$7388
current price $73.886 in 1 Air Quality Detector with Direct Plug-in Power, Magnetic Base Installation, Built-in Battery Backup, Accurate Environment Tester for Home Car Travel(3 Pack)
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
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
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
34.7 out of 5 Stars. 3 reviews
OVTSC 5-in-1 Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature Tester Multifunctional Indoor Monitor Meter White (5.51 inches / 14 cm) $23.05
$2305
current price $23.05OVTSC 5-in-1 Portable Air Quality Detector CO2 TVOC HCHO Humidity Temperature Tester Multifunctional Indoor Monitor Meter White (5.51 inches / 14 cm)
In 50+ people's carts 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
85 out of 5 Stars. 8 reviews
5-in-1 Air Quality Detector CO2 TVOC HCHO Temperature & Humidity Tester, Portable Multifunctional NDIR Infrared Sensor Carbon Dioxide Gas Monitor for Indoor Home Office (3.5 in / 9.0 cm) $18.56
$1856
current price $18.565-in-1 Air Quality Detector CO2 TVOC HCHO Temperature & Humidity Tester, Portable Multifunctional NDIR Infrared Sensor Carbon Dioxide Gas Monitor for Indoor Home Office (3.5 in / 9.0 cm)
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
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM From $27.94
3 options
Available in additional 3 optionsFrom$2794
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-COPP-B-LPM
7804.6 out of 5 Stars. 780 reviews
QenASHaing Air Quality Detector for Indoor Monitoring of Carbon Dioxide, Formaldehyde and VOC, 4" Display with Sound Alarm, Real-Time Temperature and Humidity Readings
QenASHaing Air Quality Detector for Indoor Monitoring of Carbon Dioxide, Formaldehyde and VOC, 4" Display with Sound Alarm, Real-Time Temperature and Humidity Readings
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
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
Professional 5 in 1 Indoor Air Quality Detector - Portable CO2, TVOC, HCHO, Humidity & Temperature Smart Tester (5.5 in / 14 cm) $25.05
$2505
current price $25.05Professional 5 in 1 Indoor Air Quality Detector - Portable CO2, TVOC, HCHO, Humidity & Temperature Smart Tester (5.5 in / 14 cm)
3-in-1 CO Detector Temperature and Humidity Monitor, Digital Display Alarm for Kitchen Garage Indoor Air Quality, Battery Powered Safety Sensor,B Was $19.99
3-in-1 CO Detector Temperature and Humidity Monitor, Digital Display Alarm for Kitchen Garage Indoor Air Quality, Battery Powered Safety Sensor,B
3-in-1 Portable CO2 Detector with Carbon Monoxide Sensor, Rechargeable Handheld Indoor Air Quality Monitor with Temperature & Humidity for Home, Car and RV $29.99
$2999
current price $29.993-in-1 Portable CO2 Detector with Carbon Monoxide Sensor, Rechargeable Handheld Indoor Air Quality Monitor with Temperature & Humidity for Home, Car and RV
11 out of 5 Stars. 1 reviews
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
Portable Air Quality Monitor Indoor Co2 Detector 5 In 1 Formaldehyde Hcho Tvoc Tester Lcd Temperature Humidity Tester Rechargeable Co2 Alarm Meter For Room Office Greenhouse Warehouse
Portable Air Quality Monitor Indoor Co2 Detector 5 In 1 Formaldehyde Hcho Tvoc Tester Lcd Temperature Humidity Tester Rechargeable Co2 Alarm Meter For Room Office Greenhouse Warehouse
Professional 5-in-1 Indoor Air Quality Detector and CO2 Monitor for Home Office (5.51x3.94x1.97 Inches / 14x10x5 cm) $23.08
$2308
current price $23.08Professional 5-in-1 Indoor Air Quality Detector and CO2 Monitor for Home Office (5.51x3.94x1.97 Inches / 14x10x5 cm)
Other options to consider(17)
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