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Safety Equipment and GearAir QualityAir ToolsAlarm SystemsAll Home SecurityAll Renewable EnergyAll Tool SetsBathroom HardwareBathroom PlumbingBrackets and Angle IronsBreakers, Distributors, and Load CentersCar Emergency SuppliesCarbon Monoxide AlarmsDimmers, Switches, and Wall PlatesDoor HardwareDoor Security HardwareElectrical ToolsElectronic Communication ComponentsEmergency SuppliesFastenersFire SafetyFlashlightsFurniture HardwareGarage Storage SystemsGate HardwareGatesGuttering & DrainageHand ToolsHardware KnobsHome SafetyHVAC Ducting and VentilationKiddeKitchen HardwareLight BulbsMechanics ToolsPaint Supplies & ToolsPersonal PreparednessPersonal SafetyPipes, Fittings & AccessoriesPlug AdaptersPlumbing Tools & AccessoriesPower Tool AccessoriesPower ToolsProjectsSafety DetectorsSealants, Fillers and AdhesivesShop Plumbing by FixtureSolar AccessoriesSolar Charge ControllerSolderingStorage ContainersStorm & Flood PrepSurveillanceThermostatsTool Equipment & StorageValves & Valve RepairWater Heaters, Pumps & TanksWildfire Prep
Heat Detector System Sensor(25)
Uses item details. Price when purchased online
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $69.88 $34.94/ea
Sponsored
$6988
current price $69.88$34.94/ea
From $34.94
(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
1224.2 out of 5 Stars. 122 reviews
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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
Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA $779.00
Sponsored
$77900
current price $779.00Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA
Flash Deal Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White From $73.57 Was $81.75
Sponsored
From$7357
$81.75
Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White
184.4 out of 5 Stars. 18 reviews
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Rate of Rise / Fixed Temperature Heat Sensor $85.09 Was $112.57
Now$8509
current price Now $85.09, Was $112.57$112.57
Rate of Rise / Fixed Temperature Heat Sensor
Estrotect Heat Detector w/Bullseye $79.99
$7999
current price $79.99Estrotect Heat Detector w/Bullseye
15 out of 5 Stars. 1 reviews
3-in-1 Smoke and C0 Detector 10-Year Battery-Powered Heat Alarm with Clear LCD Display and Sound Warning for Home Reliable Detector for Enhanced Safety and Protection (Includes Batteries) $27.99
$2799
current price $27.993-in-1 Smoke and C0 Detector 10-Year Battery-Powered Heat Alarm with Clear LCD Display and Sound Warning for Home Reliable Detector for Enhanced Safety and Protection (Includes Batteries)
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Google Nest Temperature Sensor
Google Nest Temperature Sensor
11624.8 out of 5 Stars. 1162 reviews
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Elk Wireless Heat Rate of Rise $96.99
$9699
current price $96.99Elk Wireless Heat Rate of Rise
Swann 4K Ultra HD Heat & Motion Detection Sensor Warning Light Bullet Security Camera
Swann 4K Ultra HD Heat & Motion Detection Sensor Warning Light Bullet Security Camera
1204.4 out of 5 Stars. 120 reviews
Estrotect Heat Detector w/Bullseye $79.99
Sponsored
$7999
current price $79.99Estrotect Heat Detector w/Bullseye
15 out of 5 Stars. 1 reviews
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
Sponsored
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 Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack From $19.52
9 options
Available in additional 9 optionsFrom$1952
SITERWELL Smoke Detector, Magnetic Fastening Kit, Smoke Alarm, Photoelectric ,Low Battery Warning Function, 1 Pack
5624.4 out of 5 Stars. 562 reviews
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Supplemental Hosmart Alarm Sensor (1 Sensor ) $34.99
$3499
current price $34.99Supplemental Hosmart Alarm Sensor (1 Sensor )
93 out of 5 Stars. 9 reviews
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SensorPush HTP.xw Smart Temperature Sensor & Humidity Sensor - Thermometer, Barometer, & Hygrometer w/App Monitoring - Premium Heat Index, Barometric Pressure Gauge, Temperature and Humidity Monitor $89.99
$8999
current price $89.99SensorPush HTP.xw Smart Temperature Sensor & Humidity Sensor - Thermometer, Barometer, & Hygrometer w/App Monitoring - Premium Heat Index, Barometric Pressure Gauge, Temperature and Humidity Monitor
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Room Alert 12S Proactive Environment Monitor Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA $779.00
$77900
current price $779.00Room Alert 12S Proactive Environment Monitor Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA
Lynono Thermal Imaging Multimeter Thermal Imaging Device with Live Heat Distribution Analysis for Building Diagnostics
Lynono Thermal Imaging Multimeter Thermal Imaging Device with Live Heat Distribution Analysis for Building Diagnostics
Quality 9 In 1 BT Air Quality Monitor CO2 Meter Carbon Dioxide Detector Time/Date CO2 TVOC HCHO PM2.5 PM1.0 PM10 Temperature Humidity Detection Support APP Control With Alarm $30.90
$3090
current price $30.90Quality 9 In 1 BT Air Quality Monitor CO2 Meter Carbon Dioxide Detector Time/Date CO2 TVOC HCHO PM2.5 PM1.0 PM10 Temperature Humidity Detection Support APP Control With Alarm
ETHZZLE 2Pcs Pir Infrared Motion Alarm Wall Mount Bracket White for Home with Quick Setup and Heat Dissipation $9.37
$937
current price $9.37ETHZZLE 2Pcs Pir Infrared Motion Alarm Wall Mount Bracket White for Home with Quick Setup and Heat Dissipation
System Sensor D4120 Innovair Flex 4-Wire Duct Detector Sensor
System Sensor D4120 Innovair Flex 4-Wire Duct Detector Sensor
Best seller 1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S) From $29.99
Sponsored
From$2999
1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S)
1214.6 out of 5 Stars. 121 reviews
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Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm $42.99
Sponsored
$4299
current price $42.99Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm
84.4 out of 5 Stars. 8 reviews
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Natural Gas Detector with Digital Display,85dB Alarm,Plug-in Gas Leak Sensor for Home,Kitchen,Restaurant,Hotel,School,Warehouse Safety Monitor
Natural Gas Detector with Digital Display,85dB Alarm,Plug-in Gas Leak Sensor for Home,Kitchen,Restaurant,Hotel,School,Warehouse Safety Monitor
Natural Gas Detector, Digital Sound Warning Gas Detector, LCD/LPG/LNG Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $22.99 Was $26.89
Sponsored
Now$2299
current price Now $22.99, Was $26.89$26.89
Natural Gas Detector, Digital Sound Warning Gas Detector, LCD/LPG/LNG Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
24.5 out of 5 Stars. 2 reviews
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Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm From $34.99
Sponsored
From$3499
Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
914.5 out of 5 Stars. 91 reviews
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Other options to consider(250)
Temperature Sensor for Parking Heater and Fuel Air Heater - Thermostat with High-Temperature Protection, Accurate Monitoring, For Models $9.87
$987
current price $9.87Temperature Sensor for Parking Heater and Fuel Air Heater - Thermostat with High-Temperature Protection, Accurate Monitoring, For Models
HBMYN 110V Automatic Body Sensor IR Infrared Switch Motion Detector Wall Mount Outdoor $11.63
$1163
current price $11.63HBMYN 110V Automatic Body Sensor IR Infrared Switch Motion Detector Wall Mount Outdoor
SYSTEM SENSOR 5622 S.SENSOR 2-CIRCUIT 194F FIXED- $57.20
$5720
current price $57.20SYSTEM SENSOR 5622 S.SENSOR 2-CIRCUIT 194F FIXED-
Swann Swann Add-On DVR Wired Bullet PIR Security Camera with Sensor Spotlight, 1080p HD Video, Indoor or Outdoor, Color Night Vision Plus True Detect Heat & Motion Detection $69.99
$6999
current price $69.99Swann Swann Add-On DVR Wired Bullet PIR Security Camera with Sensor Spotlight, 1080p HD Video, Indoor or Outdoor, Color Night Vision Plus True Detect Heat & Motion Detection
223.7 out of 5 Stars. 22 reviews
Braeburn- 7490 BlueLink Smart Connect Wireless Remote Outdoor Sensor, Pack of 6 $75.97
$7597
current price $75.97Braeburn- 7490 BlueLink Smart Connect Wireless Remote Outdoor Sensor, Pack of 6
Suodoka CL1-GSM Wireless Remote Controller GSM SMS Smart Home Security System Switch, 4.53 x 2.75 x 1.18 inches / 115 x 70 x 30 mm $45.22
$4522
current price $45.22Suodoka CL1-GSM Wireless Remote Controller GSM SMS Smart Home Security System Switch, 4.53 x 2.75 x 1.18 inches / 115 x 70 x 30 mm
HEATSHAKING 10Pcs Temperature-Sensitive Detector Modules for Industrial Relay Control
HEATSHAKING 10Pcs Temperature-Sensitive Detector Modules for Industrial Relay Control
Clearance Infrared Motion Detector, Beige Home Security Sensor With 1 Included Detector And 1 Usb Charging Cable For Indoor Apartment Garage Door Entry And Exit Monitoring, Pet Friendly Non Was $15.79
Infrared Motion Detector, Beige Home Security Sensor With 1 Included Detector And 1 Usb Charging Cable For Indoor Apartment Garage Door Entry And Exit Monitoring, Pet Friendly Non
Rongsi Driveway Alarm,Wireless Home Security Driveway Alarm 1 Receiver and 1 PIR Motion Sensor Detector 1000 FT Range Extra Infrared Alarm System Kit $18.99
$1899
current price $18.99Rongsi Driveway Alarm,Wireless Home Security Driveway Alarm 1 Receiver and 1 PIR Motion Sensor Detector 1000 FT Range Extra Infrared Alarm System Kit
584.1 out of 5 Stars. 58 reviews
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DEEPCRAFF 2-Pack White PIR Motion Sensor Security Wall Mount Brackets with Heat Dissipation $9.37
$937
current price $9.37DEEPCRAFF 2-Pack White PIR Motion Sensor Security Wall Mount Brackets with Heat Dissipation
KFFKFF 50 sqft Electric Underfloor Heating Cable Kit, 120V Radiant Floor System with Smart Thermostat & Alarm, Simple Installation for Tile, Stone, Vinyl, and Home Renovation $149.99
$14999
current price $149.99KFFKFF 50 sqft Electric Underfloor Heating Cable Kit, 120V Radiant Floor System with Smart Thermostat & Alarm, Simple Installation for Tile, Stone, Vinyl, and Home Renovation
Tuya Smart Home Wireless Alarm System Sound and Light Alarm Sensor Detector Intelligent USB Powered Sensor Wifi $16.80
$1680
current price $16.80Tuya Smart Home Wireless Alarm System Sound and Light Alarm Sensor Detector Intelligent USB Powered Sensor Wifi
Acahhotxx Temperature Sensor, Thermopile Generators Millivolt Replacement Used on Fire-place/Water Heater/ Cluster Thermocouple $13.98
$1398
current price $13.98Acahhotxx Temperature Sensor, Thermopile Generators Millivolt Replacement Used on Fire-place/Water Heater/ Cluster Thermocouple
Swann Wi-Fi 1080p Waterproof Motion Activated FloodLight Camera with Night Vision, Heat Sensing, 2-Way Talk, Dimmable 2400 Lumens, Wide 125 Degree Viewing From $89.99
From$8999
Swann Wi-Fi 1080p Waterproof Motion Activated FloodLight Camera with Night Vision, Heat Sensing, 2-Way Talk, Dimmable 2400 Lumens, Wide 125 Degree Viewing
402.9 out of 5 Stars. 40 reviews
Google Nest Thermostat Snow Programmable Wi-Fi Smart Thermostat, Energy Saving HVAC Control, Works with Google Home & Alexa, Easy DIY Install, Smart Home Temperature Control GA01334-US $109.99
$10999
current price $109.99Google Nest Thermostat Snow Programmable Wi-Fi Smart Thermostat, Energy Saving HVAC Control, Works with Google Home & Alexa, Easy DIY Install, Smart Home Temperature Control GA01334-US
Best seller 1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property From $29.99
8 options
Available in additional 8 optionsFrom$2999
1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property
1214.6 out of 5 Stars. 121 reviews
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BESTYASH 2Pcs White Camera Mounting Bracket for Home with Flexible Adjustment and Stable Installation $9.37
$937
current price $9.37BESTYASH 2Pcs White Camera Mounting Bracket for Home with Flexible Adjustment and Stable Installation
360-Degree Solar-Powered Motion Activated Alarm With IR Remote For Day/Night Outdoor Indoor Use Support Sound Recording $29.00
$2900
current price $29.00360-Degree Solar-Powered Motion Activated Alarm With IR Remote For Day/Night Outdoor Indoor Use Support Sound Recording
64.3 out of 5 Stars. 6 reviews
Elowen PIR Motion SensorDetector Wide Angle PIR Infrared Motion Sensor Detector Movement Switch Light Switch $12.66
$1266
current price $12.66Elowen PIR Motion SensorDetector Wide Angle PIR Infrared Motion Sensor Detector Movement Switch Light Switch
KFFKFF 50 sqft Electric Underfloor Heating Cable Kit, 120V Radiant Floor System with Smart Thermostat & Alarm, Simple Installation for Tile, Stone, Vinyl, and Home Renovation $125.89 Was $155.90
Now$12589
current price Now $125.89, Was $155.90$155.90
KFFKFF 50 sqft Electric Underfloor Heating Cable Kit, 120V Radiant Floor System with Smart Thermostat & Alarm, Simple Installation for Tile, Stone, Vinyl, and Home Renovation
Guardline 500 Foot Range Wireless Driveway Alarm, Outdoor and Weather Resistant Motion Sensor & Detector (1 Receiver + 1 Sensor) $238.00
$23800
current price $238.00Guardline 500 Foot Range Wireless Driveway Alarm, Outdoor and Weather Resistant Motion Sensor & Detector (1 Receiver + 1 Sensor)
214.4 out of 5 Stars. 21 reviews
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OFFIGAM Thermal Overload Relay with Automatic Reset and Phase Failure for Home Use, Multiple Sizes Available $11.41 Was $12.72
Now$1141
current price Now $11.41, Was $12.72$12.72
OFFIGAM Thermal Overload Relay with Automatic Reset and Phase Failure for Home Use, Multiple Sizes Available
YAHHU Waterproof Automatic PIR Motion Sensor Switch Outdoor Security Wall Light, 110-240V Wide Voltage High Power 1200W Infrared Intelligent Wall Detector Controls LED Lights - Black (8.66 x 3.94 in) $23.94
$2394
current price $23.94YAHHU Waterproof Automatic PIR Motion Sensor Switch Outdoor Security Wall Light, 110-240V Wide Voltage High Power 1200W Infrared Intelligent Wall Detector Controls LED Lights - Black (8.66 x 3.94 in)
3X 110V-240V Outdoor Ip44 180 Degree 50/60Hz Security Pir Motion Movement Detector Switch Infrared Motion Sensor Switch $23.30
$2330
current price $23.303X 110V-240V Outdoor Ip44 180 Degree 50/60Hz Security Pir Motion Movement Detector Switch Infrared Motion Sensor Switch
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