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Resold GeneratorsResold Generators & Power StationsSafety Equipment and GearAir QualityAlarm SystemsAll Home SecurityBathroom PlumbingCarbon Monoxide AlarmsCommercial LightingEmergency SuppliesFire SafetyFireplacesFirst AlertHome SafetyHome Safety by BrandHVAC Ducting and VentilationKiddeKitchen PlumbingPersonal PreparednessPersonal SafetyPower Tool AccessoriesSafety DetectorsShop Plumbing BrandsStorm & Flood PrepSurveillanceUniversal Security InstrumentsWater HeatersWater Heaters, Pumps & TanksWildfire Prep
Gas Sensor Co(177)
Uses item details. Price when purchased online
TOPTES Carbon Monoxide Detector with TFT Display CT-580, Rechargeable Handheld CO Inspection Device with Vibration, Visual and Audible Alarm, CO Detector for Home, Jobsite, Garage, and Travel $59.99
Sponsored
$5999
current price $59.99TOPTES Carbon Monoxide Detector with TFT Display CT-580, Rechargeable Handheld CO Inspection Device with Vibration, Visual and Audible Alarm, CO Detector for Home, Jobsite, Garage, and Travel
44 out of 5 Stars. 4 reviews
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TOPTES 4 in 1 Gas Leak Detector Guard-101 ,Gas Monitor for H2S, CO, LEL and O2, Vibration, Audible and Visual Alerts, Long Battery Life for Work and Home $99.99
Sponsored
$9999
current price $99.99TOPTES 4 in 1 Gas Leak Detector Guard-101 ,Gas Monitor for H2S, CO, LEL and O2, Vibration, Audible and Visual Alerts, Long Battery Life for Work and Home
134.5 out of 5 Stars. 13 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
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
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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
75 out of 5 Stars. 7 reviews
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LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $13.99
From$1399
LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
354.7 out of 5 Stars. 35 reviews
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Best seller Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $17.99 Was $31.99
Now$1799
current price Now $17.99, Was $31.99$31.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2854.4 out of 5 Stars. 285 reviews
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Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack From $21.31
3 options
Available in additional 3 optionsFrom$2131
Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack
1354.6 out of 5 Stars. 135 reviews
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Clearance 6-in-1 Portable Gas Detector, Plug-in & Battery Powered CO Smoke Gas Monitor with 2.8" Rotatable HD Screen, 85dB Alarm, High-Precision Sensor for Home, RV, Camping & Car Travel From $26.92
3 options
Available in additional 3 optionsFrom$2692
6-in-1 Portable Gas Detector, Plug-in & Battery Powered CO Smoke Gas Monitor with 2.8" Rotatable HD Screen, 85dB Alarm, High-Precision Sensor for Home, RV, Camping & Car Travel
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
PANGAEA Digital RV Propane Gas Detector with 85dB Loud Alarm, DC 12V, for Trailer, Motorhome, Motorcoach (Surface Mount - White)
3 options
Available in additional 3 optionsPANGAEA Digital RV Propane Gas Detector with 85dB Loud Alarm, DC 12V, for Trailer, Motorhome, Motorcoach (Surface Mount - White)
94.9 out of 5 Stars. 9 reviews
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Best seller Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included) $37.99
Sponsored
$3799
current price $37.99Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)
84.5 out of 5 Stars. 8 reviews
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CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen $32.98
Sponsored
$3298
current price $32.98CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
54.2 out of 5 Stars. 5 reviews
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CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen $32.98
$3298
current price $32.98CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
54.2 out of 5 Stars. 5 reviews
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Clearance Rirool Natural Gas Detector with Digital Display, 85dB Alarm, Plug-in Gas Leak Sensor for Home, Kitchen, Restaurant, Hotel, School, Warehouse Safety Monitor $17.66 Was $24.99
Now$1766
current price Now $17.66, Was $24.99$24.99
Rirool Natural Gas Detector with Digital Display, 85dB Alarm, Plug-in Gas Leak Sensor for Home, Kitchen, Restaurant, Hotel, School, Warehouse Safety Monitor
304.8 out of 5 Stars. 30 reviews
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First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display $50.45 Was $62.99
Now$5045
current price Now $50.45, Was $62.99$62.99
First Alert GCO1CN Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display
884.4 out of 5 Stars. 88 reviews
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Best seller Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included) $37.99
$3799
current price $37.99Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery included)
84.5 out of 5 Stars. 8 reviews
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Industry Portable Carbon Monoxide Detector Gas Analyzer CO Meter Monitor Measuring 0-1000PPM Sound And Light Vibration $132.01
$13201
current price $132.01Industry Portable Carbon Monoxide Detector Gas Analyzer CO Meter Monitor Measuring 0-1000PPM Sound And Light Vibration
6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black From $22.39
From$2239
6-in-1 CO, Smoke, Gas Detector - Portable Plug-in Safety Device with Built-in Battery, High-Precision Sensors, 85dB Alarm, and Rotatable Color Screen for Home, RV, Hotel, and Travel Use Black
TripleHBB 6-in-1 Combustible Gas Detector,Gas Detector 6 in 1 CO Smoke Combustible Alarm Plug In with LCD Display for Home RV Camping From $31.85
From$3185
TripleHBB 6-in-1 Combustible Gas Detector,Gas Detector 6 in 1 CO Smoke Combustible Alarm Plug In with LCD Display for Home RV Camping
Explosion-Proof Natural Gas Detector - Ultra-Sensitive CH4/Propane Gas Leak Alert with 85dB Siren & Strobe Light, $36.99
$3699
current price $36.99Explosion-Proof Natural Gas Detector - Ultra-Sensitive CH4/Propane Gas Leak Alert with 85dB Siren & Strobe Light,
34.3 out of 5 Stars. 3 reviews
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CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen $32.99
Sponsored
$3299
current price $32.99CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
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CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen $28.98 Was $44.99
Sponsored
Now$2898
current price Now $28.98, Was $44.99$44.99
CAZONER Natural Gas Detector & Propane Detector, 10-Year Lifespan, Gas Leak Sensor for LPG, LNG, Home Kitchen RV Methane & Propane Alarm, LCD Screen
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Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup From $51.00
3 options
Available in additional 3 optionsFrom$5100
Knox Safety Plugin Carbon Monoxide Detector, Voice Alert & LCD Display, 10-Year Battery Backup
1904 out of 5 Stars. 190 reviews
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Clearance 4-in-1 CO & Gas Detector with HD Digital Display, Temperature & Humidity Monitor, Portable Safety Alarm Sensor for Home, RV, Hotel & Camping (Black) From $21.48
From$2148
4-in-1 CO & Gas Detector with HD Digital Display, Temperature & Humidity Monitor, Portable Safety Alarm Sensor for Home, RV, Hotel & Camping (Black)
13 out of 5 Stars. 1 reviews
SITERWELL Portable Plug in Carbon Monoxide (CO)Detector 10 Year Battery,Electrochemical,Sound Warning, AC Powered for Home Office Travel,2 pack From $39.99
4 options
Available in additional 4 optionsFrom$3999
SITERWELL Portable Plug in Carbon Monoxide (CO)Detector 10 Year Battery,Electrochemical,Sound Warning, AC Powered for Home Office Travel,2 pack
494.5 out of 5 Stars. 49 reviews
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SW-723 Gas Detector Carbon Dioxide CO2 Monitor Alarm 9999 PPM Sensor Professional Carbon Dioxide Tester Device CO Meter $213.51
$21351
current price $213.51SW-723 Gas Detector Carbon Dioxide CO2 Monitor Alarm 9999 PPM Sensor Professional Carbon Dioxide Tester Device CO Meter
50+ bought since yesterday Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch From $65.00
2 options
Available in additional 2 optionsFrom$6500
Kidde Hardwired Combination Smoke & Carbon Monoxide Detector, AA Battery Backup, 5-inch
3194.4 out of 5 Stars. 319 reviews
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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
75 out of 5 Stars. 7 reviews
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50+ bought since yesterday Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts From $49.96
2 options
Available in additional 2 optionsFrom$4996
Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts
3364.5 out of 5 Stars. 336 reviews
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Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector From $60.00
2 options
Available in additional 2 optionsFrom$6000
Kidde 10-Year Sealed Lithium Battery-Operated Combination Smoke & Carbon Monoxide Detector
4274.2 out of 5 Stars. 427 reviews
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Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack From $21.31
Sponsored
From$2131
Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack
1354.6 out of 5 Stars. 135 reviews
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50+ bought since yesterday Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts From $49.96
Sponsored
From$4996
Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Voice Alerts
3364.5 out of 5 Stars. 336 reviews
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First Alert GC01CN Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display, 1039760PT $50.45 $59.35/ea
$5045
current price $50.45$59.35/ea
First Alert GC01CN Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display, 1039760PT
135 out of 5 Stars. 13 reviews
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Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm
Digital Carbon Monoxide Meter CO Gas leak Detector Gas Analyzer High Precision Smoke Leak Detector Gas Monitor Tester 1000ppm
4 in 1 Gas Detector SKZ1050C-CO/H2S/O2/EX gas detector alarm $865.13
$86513
current price $865.134 in 1 Gas Detector SKZ1050C-CO/H2S/O2/EX gas detector alarm
Multi Gas Detector O2 H2S CO LEL 4 in 1 Gas Meter Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector From $211.68
From$21168
Multi Gas Detector O2 H2S CO LEL 4 in 1 Gas Meter Oxygen Hydrogen Sulfide Carbon Monoxide Combustible Gas Leak Detector
3-in-1 CO Detector, Handheld Carbon Monoxide Sensor with CO2 Concentration, Temperature & Humidity Monitor, Natural Gas & Smoke Alarm for Home Apartment Hotel Camping RV
3-in-1 CO Detector, Handheld Carbon Monoxide Sensor with CO2 Concentration, Temperature & Humidity Monitor, Natural Gas & Smoke Alarm for Home Apartment Hotel Camping RV
15 out of 5 Stars. 1 reviews
TOPTES Carbon Monoxide Detector with TFT Display CT-580, Rechargeable Handheld CO Inspection Device with Vibration, Visual and Audible Alarm, CO Detector for Home, Jobsite, Garage, and Travel $59.99
$5999
current price $59.99TOPTES Carbon Monoxide Detector with TFT Display CT-580, Rechargeable Handheld CO Inspection Device with Vibration, Visual and Audible Alarm, CO Detector for Home, Jobsite, Garage, and Travel
44 out of 5 Stars. 4 reviews
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Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included From $49.97
2 options
Available in additional 2 optionsFrom$4997
Kidde Battery-Operated Combination Smoke & Carbon Monoxide Detector, Batteries Included
2164.6 out of 5 Stars. 216 reviews
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FACEGA Mini Carbon Monoxide Detector 0-999ppm Portable CO Gas Detector LCD Display Handheld Smoke Carbon Monoxide Monitor Battery Operated Carbon Monoxide Alarm Sensor for Hotel Dorm RV $15.84
$1584
current price $15.84FACEGA Mini Carbon Monoxide Detector 0-999ppm Portable CO Gas Detector LCD Display Handheld Smoke Carbon Monoxide Monitor Battery Operated Carbon Monoxide Alarm Sensor for Hotel Dorm RV
Tuya Wifi Natural Gas-Sensor Household Intelligent Combustible Gas-Alarm Detector Gas-Leakage Sensor Compatible with Assistant $24.40
$2440
current price $24.40Tuya Wifi Natural Gas-Sensor Household Intelligent Combustible Gas-Alarm Detector Gas-Leakage Sensor Compatible with Assistant
Digital 4-in-1 Gas Detector Oxygen (O2) Hydrogen Sulfide (H2S) Carbon Monoxide (CO) Combustible Gas LEL Monitor Gas Analyzer $134.85
$13485
current price $134.85Digital 4-in-1 Gas Detector Oxygen (O2) Hydrogen Sulfide (H2S) Carbon Monoxide (CO) Combustible Gas LEL Monitor Gas Analyzer
TOPTES 4 in 1 Gas Leak Detector Guard-101 ,Gas Monitor for H2S, CO, LEL and O2, Vibration, Audible and Visual Alerts, Long Battery Life for Work and Home $99.99
$9999
current price $99.99TOPTES 4 in 1 Gas Leak Detector Guard-101 ,Gas Monitor for H2S, CO, LEL and O2, Vibration, Audible and Visual Alerts, Long Battery Life for Work and Home
134.5 out of 5 Stars. 13 reviews
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Handheld Carbon Monoxide Meter Portable CO Gas Leak Detector Gas Analyzer High Precision Detector De Gas Monitor Tester 1000ppm $82.70
$8270
current price $82.70Handheld Carbon Monoxide Meter Portable CO Gas Leak Detector Gas Analyzer High Precision Detector De Gas Monitor Tester 1000ppm
Pump Multi Gas Detector Gas Meter O2 H2S CO LEL 4 In 1 Oxygen Hydrogen Sulfide Carbon Monoxide Leak Detector
Pump Multi Gas Detector Gas Meter O2 H2S CO LEL 4 In 1 Oxygen Hydrogen Sulfide Carbon Monoxide Leak Detector
Handheld Portable High Precision 4-in-1 Gas Detector - Combustible & Toxic Hazardous Gas Meter O2 CO H2S Analyzer Rechargeable From $113.14
From$11314
Handheld Portable High Precision 4-in-1 Gas Detector - Combustible & Toxic Hazardous Gas Meter O2 CO H2S Analyzer Rechargeable
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery
4904.4 out of 5 Stars. 490 reviews
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