Portable Co Sensor(110)
Uses item details. Price when purchased online
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
15984.7 out of 5 Stars. 1598 reviews
Save with
Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5 From $23.44
Sponsored
From$2344
Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5
7294.7 out of 5 Stars. 729 reviews
Save with
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
11 out of 5 Stars. 1 reviews
Save with
Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester $39.99
Sponsored
$3999
current price $39.99Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester
43 out of 5 Stars. 4 reviews
Save with
Vrorvz Portable Handheld CO2 Detector Accurate CO Sensor Monitors Indoor Air Quality Temperature Humidity for Home Tent Car RV Compact Lightweight，TYPE C Charging
Vrorvz Portable Handheld CO2 Detector Accurate CO Sensor Monitors Indoor Air Quality Temperature Humidity for Home Tent Car RV Compact Lightweight，TYPE C Charging
15 out of 5 Stars. 1 reviews
Clearance YJYGSQ, 3-in-1 Portable Handheld CO Detector with Temperature and Humidity Monitor, White, Battery, Electrochemical Sensor Carbon Monoxide Alarm Was $24.37
YJYGSQ, 3-in-1 Portable Handheld CO Detector with Temperature and Humidity Monitor, White, Battery, Electrochemical Sensor Carbon Monoxide Alarm
Portable Combustible Gas Detector Leakage CO Methane Natural Gas Sensor Alarm Meter $25.99
$2599
current price $25.99Portable Combustible Gas Detector Leakage CO Methane Natural Gas Sensor Alarm Meter
Flash Deal X-Sense Carbon Monoxide Detectors, Portable CO Alarms with LCD Display, Replaceable Battery Powered, Travel-Friendly, 1 Pack, XC0C-SR $13.99
$1399
current price $13.99X-Sense Carbon Monoxide Detectors, Portable CO Alarms with LCD Display, Replaceable Battery Powered, Travel-Friendly, 1 Pack, XC0C-SR
2404.7 out of 5 Stars. 240 reviews
Save with
Handheld 3-in-1 Carbon Monoxide Detector with CO₂, Temperature & Humidity Monitor – Portable Electrochemical Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester (1PC)
Handheld 3-in-1 Carbon Monoxide Detector with CO₂, Temperature & Humidity Monitor – Portable Electrochemical Sensor Alarm for Home, Travel, Car, Apartment – Air Quality Tester (1PC)
100+ bought since yesterday 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
6104.6 out of 5 Stars. 610 reviews
Save with
X-Sense Wi-Fi Plug-in Carbon Monoxide Detector with AAA Battery Backup, No-Cost App Notifications, XC0C-iA, 1-Pack From $16.99
Sponsored
From$1699
X-Sense Wi-Fi Plug-in Carbon Monoxide Detector with AAA Battery Backup, No-Cost App Notifications, XC0C-iA, 1-Pack
1354.6 out of 5 Stars. 135 reviews
Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester $40.99
Sponsored
$4099
current price $40.99Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester
34 out of 5 Stars. 3 reviews
Save with
Clearance Hxlamzoo 4-in-1 Portable CO and Combustible Gas Detector with Temperature Humidity Monitor, High Precision Sensor, Real-time Data, 140 Hours Battery Life, Type-C Charging, for Outdoor Safety Was $51.99
Hxlamzoo 4-in-1 Portable CO and Combustible Gas Detector with Temperature Humidity Monitor, High Precision Sensor, Real-time Data, 140 Hours Battery Life, Type-C Charging, for Outdoor Safety
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
15984.7 out of 5 Stars. 1598 reviews
Save with
3-in-1 CO Detector, Temperature & Humidity Monitor for Kitchen & Garage – Portable Alarm Sensor with LED Display, Home Safety Alert From $16.47
From$1647
3-in-1 CO Detector, Temperature & Humidity Monitor for Kitchen & Garage – Portable Alarm Sensor with LED Display, Home Safety Alert
TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel $45.99
$4599
current price $45.99TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel
154.5 out of 5 Stars. 15 reviews
Save with
X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R From $16.99
3 options
Available in additional 3 optionsFrom$1699
X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R
1354.6 out of 5 Stars. 135 reviews
GJX Portable 3-in-1 CO Detector,Handheld Carbon Monoxide Sensor,Monitors CO2 Concentration,Temperature & Humidity,Compact,Rechargeable,Home Car RV,85x51x17mm $22.07
$2207
current price $22.07GJX Portable 3-in-1 CO Detector,Handheld Carbon Monoxide Sensor,Monitors CO2 Concentration,Temperature & Humidity,Compact,Rechargeable,Home Car RV,85x51x17mm
21 out of 5 Stars. 2 reviews
4 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector From $13.99
From$1399
4 Pack LCD Display CO Carbon Monoxide Gas Detector Device Home Safety Alarm Detector
15 out of 5 Stars. 1 reviews
Save with
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
11 out of 5 Stars. 1 reviews
Save with
TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel $45.99
Sponsored
$4599
current price $45.99TOPTES Carbon Monoxide Detector CT-300, Handheld CO Alarm with Backlit LCD Display and Audible Visual Alerts, for Home, Car, Camping and Travel
154.5 out of 5 Stars. 15 reviews
Save with
Flash Deal X-Sense Carbon Monoxide Detectors, Portable CO Alarms with LCD Display, Replaceable Battery Powered, Travel-Friendly, 1 Pack, XC0C-SR $13.99
Sponsored
$1399
current price $13.99X-Sense Carbon Monoxide Detectors, Portable CO Alarms with LCD Display, Replaceable Battery Powered, Travel-Friendly, 1 Pack, XC0C-SR
2404.7 out of 5 Stars. 240 reviews
Save with
Plug-In CO Alarm $23.99
$2399
current price $23.99Plug-In CO Alarm
1794.5 out of 5 Stars. 179 reviews
Save with
Carbon Monoxide Detectors, Portable CO Detector with Temperature Sensor LCD Backlight Screen, Handheld Carbon Monoxide Meter Tester 0-1000PPM Range, Indoor/Oudoor (Includes Battery x3) $59.48
$5948
current price $59.48Carbon Monoxide Detectors, Portable CO Detector with Temperature Sensor LCD Backlight Screen, Handheld Carbon Monoxide Meter Tester 0-1000PPM Range, Indoor/Oudoor (Includes Battery x3)
Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester $39.99
$3999
current price $39.99Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester
43 out of 5 Stars. 4 reviews
Save with
Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5
3 options
Available in additional 3 optionsKidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5
7294.7 out of 5 Stars. 729 reviews
Save with
Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3 $23.44
$2344
current price $23.44Kidde AA Battery Operated Basic Carbon Monoxide Alarm - 9CO5-LP3
4364.6 out of 5 Stars. 436 reviews
Save with
Clearance 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 Was $25.88
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
Handheld Carbon Monoxide Meter Portable CO Gas Detector Gas Tester with 01000ppm Range 1PPM Resolution ABS Material $34.17
$3417
current price $34.17Handheld Carbon Monoxide Meter Portable CO Gas Detector Gas Tester with 01000ppm Range 1PPM Resolution ABS Material
12 out of 5 Stars. 1 reviews
GJX 2026 New Portable 3-In-1 Co2 Meter Detector | High Precision Carbon Monoxide Sensor | Monitors Indoor Air Quality,Temperature,Humidity | Compact Handheld Device | Type-C Rechargeable | 85X51X17Mm $21.31
$2131
current price $21.31GJX 2026 New Portable 3-In-1 Co2 Meter Detector | High Precision Carbon Monoxide Sensor | Monitors Indoor Air Quality,Temperature,Humidity | Compact Handheld Device | Type-C Rechargeable | 85X51X17Mm
VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Lightweight & Portable $35.83
Sponsored
$3583
current price $35.83VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Lightweight & Portable
43.5 out of 5 Stars. 4 reviews
VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Wall-Mounted Use $45.90
Sponsored
$4590
current price $45.90VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Wall-Mounted Use
12 out of 5 Stars. 1 reviews
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 CO Detector Temperature and Humidity Monitor, Digital Display Alarm for Kitchen Garage Indoor Air Quality, Battery Powered Safety Sensor,B
Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester $40.99
$4099
current price $40.99Handheld Carbon Monoxide Meter CO Detector Portable CO Gas Leak Detector High Precision Carbon Monoxide Tester
34 out of 5 Stars. 3 reviews
Save with
4-in-1 Portable Gas Detector, Multi-Gas Monitor with CO, Humidity, Temperature Alarm, 3.18 x 1.84in Gas Analyzer for Home, Camping
4-in-1 Portable Gas Detector, Multi-Gas Monitor with CO, Humidity, Temperature Alarm, 3.18 x 1.84in Gas Analyzer for Home, Camping
SITERWELL Portable Plug in Carbon Monoxide (CO)Detector 10 Year Battery,Electrochemical,Sound Warning, AC Powered for Home Office Travel,2 pack From $51.19
3 options
Available in additional 3 optionsFrom$5119
SITERWELL Portable Plug in Carbon Monoxide (CO)Detector 10 Year Battery,Electrochemical,Sound Warning, AC Powered for Home Office Travel,2 pack
274.4 out of 5 Stars. 27 reviews
Save with
4in1 Gas Detector for CO, H2S, O2, LEL Detection Long Battery Life Multi-Alarm System Portable Design $94.45
$9445
current price $94.454in1 Gas Detector for CO, H2S, O2, LEL Detection Long Battery Life Multi-Alarm System Portable Design
Yrmaups CO2 Detector, Portable Handheld Air Quality Monitor with Temperature and Humidity Sensor, 3-in- Carbon Monoxide Tester for Home, Office, Car and RV, Indoor Air Quality Meter $21.99
$2199
current price $21.99Yrmaups CO2 Detector, Portable Handheld Air Quality Monitor with Temperature and Humidity Sensor, 3-in- Carbon Monoxide Tester for Home, Office, Car and RV, Indoor Air Quality Meter
Carbon Monoxide Detectors, Portable CO Detector Battery Powered, Handheld Carbon Monoxide Monitor Alarm Detector with LCD Display for Home/Outdoor/Travel $33.92
$3392
current price $33.92Carbon Monoxide Detectors, Portable CO Detector Battery Powered, Handheld Carbon Monoxide Monitor Alarm Detector with LCD Display for Home/Outdoor/Travel
CO Detector Handheld Carbon Monoxide Detector, Portable Air Quality Monitor with Temp & Humidity, Digital Gas Leak Alarm for Home, Apartment, RV Safety, White A
CO Detector Handheld Carbon Monoxide Detector, Portable Air Quality Monitor with Temp & Humidity, Digital Gas Leak Alarm for Home, Apartment, RV Safety, White A
Siterwell AA Battery Operated Carbon Monoxide Detector, Electrochemical sensor,Portable for Travel home,4-pack From $69.99
2 options
Available in additional 2 optionsFrom$6999
Siterwell AA Battery Operated Carbon Monoxide Detector, Electrochemical sensor,Portable for Travel home,4-pack
1184.5 out of 5 Stars. 118 reviews
Save with
CO Detector,Temperature With Battery Handheld 3-in-1 Portable Carbon Rv $25.28
$2528
current price $25.28CO Detector,Temperature With Battery Handheld 3-in-1 Portable Carbon Rv
VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Lightweight & Portable $35.83
$3583
current price $35.83VEVOR Carbon Dioxide Monitor, CO2 Controller with Temperature and Humidity Display, NDIR Sensor, CO2 Sensor for Outdoors, Home, Office, Car, Lightweight & Portable
43.5 out of 5 Stars. 4 reviews
3-in-1 CO Temperature Humidity Detector, Kitchen Garage Air Quality Monitor, Portable Digital Sensor with Alarm, Environmental Monitoring Tool, C
3-in-1 CO Temperature Humidity Detector, Kitchen Garage Air Quality Monitor, Portable Digital Sensor with Alarm, Environmental Monitoring Tool, C
Portable CO & O2 Gas Detector with Upgraded Electrochemical Sensor, Altitude & Barometric Pressure 5-in-1 Rechargeable Metal Monitor for RV, Garage, Camping & Outdoor Use $88.50
$8850
current price $88.50Portable CO & O2 Gas Detector with Upgraded Electrochemical Sensor, Altitude & Barometric Pressure 5-in-1 Rechargeable Metal Monitor for RV, Garage, Camping & Outdoor Use
Clearance Portable CO2 | Handheld Indoor Air Quality | 3-in-1 CO Temperature Humidity Sensor | Rechargeable | Compact for Home Car RV | 85x51x17mm Was $20.28
Portable CO2 | Handheld Indoor Air Quality | 3-in-1 CO Temperature Humidity Sensor | Rechargeable | Compact for Home Car RV | 85x51x17mm
GJX 2026 New 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 $15.64
$1564
current price $15.64GJX 2026 New 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
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
3-in-1 CO Detector,Handheld Carbon Monoxide Sensor,Monitors CO2 Concentration,Temperature & Humidity, Detects CO, Natural Gas, Smoke, Temperature, and Humidity for Home, Apartment, Hotel, Camping RV
3-in-1 CO Detector,Handheld Carbon Monoxide Sensor,Monitors CO2 Concentration,Temperature & Humidity, Detects CO, Natural Gas, Smoke, Temperature, and Humidity for Home, Apartment, Hotel, Camping RV
4-in-1 CO & Gas Detector with HD Digital Display, Temperature & Humidity Monitor, Portable Safety Alarm Sensor for Home, RV, Hotel & Camping (Black)
4-in-1 CO & Gas Detector with HD Digital Display, Temperature & Humidity Monitor, Portable Safety Alarm Sensor for Home, RV, Hotel & Camping (Black)
Popular in Portable Co Sensor
Related Products
First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack
First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack$239.99current price $239.99SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Bilingual Voice Alerts for Bedroom, UL217-9th , 2 Packs
SITERWELL Smoke Detector 10 Year Battery Operated,Photoelectric,Rlectrochemical Sensors, Bilingual Voice Alerts for Bedroom, UL217-9th , 2 Packs$35.99current price $35.99Schneider Electric Electronic Alarm,12/24VAC/DC,0.280AC,Blk XVS72BMBN
Schneider Electric Electronic Alarm,12/24VAC/DC,0.280AC,Blk XVS72BMBN$222.08current price $222.08Buzzer, Buzzer, Pulse, 115 to 230V AC, 80 dB, Fiberglass, Black, Wall Mount
Buzzer, Buzzer, Pulse, 115 to 230V AC, 80 dB, Fiberglass, Black, Wall Mount$77.59current price $77.59INTBUYING 4-20mA Smart Water Level Sensor Pressure Transducer Pressure Range 0-30M
INTBUYING 4-20mA Smart Water Level Sensor Pressure Transducer Pressure Range 0-30M$119.00current price $119.00Fire Alarm Being Activated Poster Print - 18 x 24 in.
Fire Alarm Being Activated Poster Print - 18 x 24 in.$40.25current price $40.25First Alert Hardwired Smoke Alarm with Battery Backup 6 PACK
First Alert Hardwired Smoke Alarm with Battery Backup 6 PACK$139.99current price $139.99Bea Active Infrared Sensor for Request 10R2E-100
Bea Active Infrared Sensor for Request 10R2E-100$180.99current price $180.99Fire Extinguisher Alarm,12V,Polycrbonate
Fire Extinguisher Alarm,12V,Polycrbonate$58.61current price $58.61