Surveillance EquipmentAll Garmin ProductsPortable TechStunt DroneView in your home - Tech2K Games3D Printers3D Printing Accessories3D Printing Pens4K TVs5G WirelessAcerActivisionAll ASUSAll CamcordersAll CamerasAll CanonAll DellAll Electronics Cleaning KitsAll GPS DevicesAll Home AssistantsAll JBLAll Laptop ComputersAll MSIAll onnAll PhonesAll Premium TechAll Resold at WalmartAll Resold ElectronicsAll Security CamerasAll Smart TVsAll TabletsAll TVsAndroid Smart WatchesAndroid TabletsAnkerApp-Based AccessoriesAppleApple AccessoriesApple HomeKit Compatible DevicesApple iPadApple iPhoneApple MacBookApple MusicApple WatchArloASUSAudio Visual AccessoriesCamcorder AccessoriesCamera AccessoriesCamera Bundles and KitsCar GPSCell Phone AccessoriesCobra ElectronicsComputer AccessoriesComputer ComponentsComputer MonitorsComputer ScannersComputer ServersComputer Software for Home & OfficeCorded PhonesCordless PhonesCreator & Media LaptopsDellDesktop ComputersDrone AccessoriesDrones by BrandDrones by PriceDrones by Skill LevelDrones with CamerasElectronic ArtsEssential LaptopsFHD TVsFitbitFitness TrackersFitness Trackers AccessoriesFoldable DronesFrame TVsFujifilmGarminGarmin GPSGarmin GPS HandheldsGarmin Smart WatchesGeneral Electronic AccessoriesGoogleGoogle HomeGoogle Pixel WatchesGoProGoPro Cameras & AccessoriesGPS AccessoriesGPS TrackersGrades 6-12 ElectronicsGrades K-5 ElectronicsHandheld GPS UnitsHDR TVsHeadphonesHeadsets & AccessoriesHome Audio, Speakers & SoundbarsHome TheaterHPInstant Film CamerasInternet Phone Products (VoIP)iPad & TabletsiPad AccessoriesJBLJlab AudioKaraoke Machines and AccessoriesKids Smartwatches & Fitness TrackersLaptop AccessoriesLaptopsLaptops by Operating SystemLCD TVsLED TVsMini-LED TVsMobile Hotspots & Signal BoostersMobile PhotographyMotorcycle GPSMotorolaNest Compatible DevicesNetworkingNikononnOtterboxPC GamingPortable AudioPortable TVsPre-K ElectronicsPremium AccessoriesPremium AudioPremium CamerasPremium Cell PhonesPremium ComputersPremium PC GamingPremium Smart HomePremium TabletsPremium TV & VideoPremium Wearable TechPrepaid PhonesPrinters & SuppliesQLED TVsRC DronesRCARed Light TherapyRed Light Therapy DevicesRefurbished AppleRefurbished LaptopsRefurbished TabletsRefurbished TVsResold AudioResold AutomotiveResold Baby GearResold Cell PhonesResold CollectiblesResold ElectronicsResold GamingResold Garden & ToolsResold Health & WellnessResold HomeResold Movies & MediaResold Musical InstrumentsResold Open boxResold Sports & OutdoorsResold VacuumsRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsRokuSamsungSamsung Galaxy WatchesSamsung SmartThings Compatible DevicesSamsung TabletsSanyoSecurity CamerasSecurity Cameras and Security Camera SystemsSharpShop All DronesShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Camcorders by TypeShop Cameras by BrandShop Cameras by TypeShop Computers by BrandShop Drones by TypeShop Electronics Accessories by BrandShop Laptops By BrandShop Laptops by TypeShop Tablets by BrandShop Tablets by FunctionShop Tablets by Operating SystemShop Tablets by Screen SizeShop TVs by BrandShop TVs by SizeSmart AppliancesSmart DisplaySmart Energy and LightingSmart GlassesSmart Health and FitnessSmart Home Assistants, Controllers & HubsSmart RingsSmart Rings for WomenSmart SpeakersSmart TVsSmart Watch AccessoriesSmart Watch CategoriesSmart WatchesSonySports & Action CamcordersSteelseriesStraight Talk WirelessStreaming DevicesSurveillance CamerasTablet AccessoriesTablets for KidsTCLTop Rated CamerasTop Rated Video CamerasTP LinkTruck GPSTV AccessoriesTVs - Certified RefurbishedUnlocked PhonesVtechWalkie Talkies & 2-Way RadiosWalmart Private Brand ElectronicsWaterproof CamerasWearable Tech for KidsWearable Tech for SeniorsWearable Technology by BrandWeb CamerasWeMo Compatible DevicesWindows TabletsWink Compatible DevicesWork & Business LaptopsWorks with AlexaWorks with Google Assistant
Sort by|
Surveillance EquipmentAll Garmin ProductsPortable TechStunt DroneView in your home - Tech2K Games3D Printers3D Printing Accessories3D Printing Pens4K TVs5G WirelessAcerActivisionAll ASUSAll CamcordersAll CamerasAll CanonAll DellAll Electronics Cleaning KitsAll GPS DevicesAll Home AssistantsAll JBLAll Laptop ComputersAll MSIAll onnAll PhonesAll Premium TechAll Resold at WalmartAll Resold ElectronicsAll Security CamerasAll Smart TVsAll TabletsAll TVsAndroid Smart WatchesAndroid TabletsAnkerApp-Based AccessoriesAppleApple AccessoriesApple HomeKit Compatible DevicesApple iPadApple iPhoneApple MacBookApple MusicApple WatchArloASUSAudio Visual AccessoriesCamcorder AccessoriesCamera AccessoriesCamera Bundles and KitsCar GPSCell Phone AccessoriesCobra ElectronicsComputer AccessoriesComputer ComponentsComputer MonitorsComputer ScannersComputer ServersComputer Software for Home & OfficeCorded PhonesCordless PhonesCreator & Media LaptopsDellDesktop ComputersDrone AccessoriesDrones by BrandDrones by PriceDrones by Skill LevelDrones with CamerasElectronic ArtsEssential LaptopsFHD TVsFitbitFitness TrackersFitness Trackers AccessoriesFoldable DronesFrame TVsFujifilmGarminGarmin GPSGarmin GPS HandheldsGarmin Smart WatchesGeneral Electronic AccessoriesGoogleGoogle HomeGoogle Pixel WatchesGoProGoPro Cameras & AccessoriesGPS AccessoriesGPS TrackersGrades 6-12 ElectronicsGrades K-5 ElectronicsHandheld GPS UnitsHDR TVsHeadphonesHeadsets & AccessoriesHome Audio, Speakers & SoundbarsHome TheaterHPInstant Film CamerasInternet Phone Products (VoIP)iPad & TabletsiPad AccessoriesJBLJlab AudioKaraoke Machines and AccessoriesKids Smartwatches & Fitness TrackersLaptop AccessoriesLaptopsLaptops by Operating SystemLCD TVsLED TVsMini-LED TVsMobile Hotspots & Signal BoostersMobile PhotographyMotorcycle GPSMotorolaNest Compatible DevicesNetworkingNikononnOtterboxPC GamingPortable AudioPortable TVsPre-K ElectronicsPremium AccessoriesPremium AudioPremium CamerasPremium Cell PhonesPremium ComputersPremium PC GamingPremium Smart HomePremium TabletsPremium TV & VideoPremium Wearable TechPrepaid PhonesPrinters & SuppliesQLED TVsRC DronesRCARed Light TherapyRed Light Therapy DevicesRefurbished AppleRefurbished LaptopsRefurbished TabletsRefurbished TVsResold AudioResold AutomotiveResold Baby GearResold Cell PhonesResold CollectiblesResold ElectronicsResold GamingResold Garden & ToolsResold Health & WellnessResold HomeResold Movies & MediaResold Musical InstrumentsResold Open boxResold Sports & OutdoorsResold VacuumsRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsRokuSamsungSamsung Galaxy WatchesSamsung SmartThings Compatible DevicesSamsung TabletsSanyoSecurity CamerasSecurity Cameras and Security Camera SystemsSharpShop All DronesShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Camcorders by TypeShop Cameras by BrandShop Cameras by TypeShop Computers by BrandShop Drones by TypeShop Electronics Accessories by BrandShop Laptops By BrandShop Laptops by TypeShop Tablets by BrandShop Tablets by FunctionShop Tablets by Operating SystemShop Tablets by Screen SizeShop TVs by BrandShop TVs by SizeSmart AppliancesSmart DisplaySmart Energy and LightingSmart GlassesSmart Health and FitnessSmart Home Assistants, Controllers & HubsSmart RingsSmart Rings for WomenSmart SpeakersSmart TVsSmart Watch AccessoriesSmart Watch CategoriesSmart WatchesSonySports & Action CamcordersSteelseriesStraight Talk WirelessStreaming DevicesSurveillance CamerasTablet AccessoriesTablets for KidsTCLTop Rated CamerasTop Rated Video CamerasTP LinkTruck GPSTV AccessoriesTVs - Certified RefurbishedUnlocked PhonesVtechWalkie Talkies & 2-Way RadiosWalmart Private Brand ElectronicsWaterproof CamerasWearable Tech for KidsWearable Tech for SeniorsWearable Technology by BrandWeb CamerasWeMo Compatible DevicesWindows TabletsWink Compatible DevicesWork & Business LaptopsWorks with AlexaWorks with Google Assistant

Electronics Sensor

Uses item details. Price when purchased online

Briidea Power Failure Outage Alarm for Freezer, with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage From $19.99

Briidea Power Failure Outage Alarm for Freezer, with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage
Options
Sponsored
From$1999

Briidea Power Failure Outage Alarm for Freezer, with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage

4.8 out of 5 Stars. 16 reviews

(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup $69.88 $34.94/ea

(2 pack) Universal Security Instruments, Sensing Plus, Hardwired Smoke & Fire Alarm, Multi-Criteria Detection, with 10 Year Battery Backup
Options
Sponsored
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

4.2 out of 5 Stars. 128 reviews

YoLink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit with AC Power Outage Alert, LoRa Long-Range, Remote Monitoring, App Alerts, Text/SMS, Email Alerts, Alexa, IFTTT, Google Assistant From $34.99

YoLink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit with AC Power Outage Alert, LoRa Long-Range, Remote Monitoring, App Alerts, Text/SMS, Email Alerts, Alexa, IFTTT, Google Assistant
Options
Sponsored
From$3499

YoLink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit with AC Power Outage Alert, LoRa Long-Range, Remote Monitoring, App Alerts, Text/SMS, Email Alerts, Alexa, IFTTT, Google Assistant

4.8 out of 5 Stars. 12 reviews

Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White From $89.99

Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White
Options
Sponsored
From$8999

Inkird Home Radon Detector, Portable Radon Meter, Short-Term and Long-Term Accurate Monitoring 2-Year Battery,White

4.4 out of 5 Stars. 21 reviews

Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack $123.66

Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack
current price $123.66

Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack

4.4 out of 5 Stars. 192 reviews

Yolispa Multifunctional Wireless Driveway Alarm Outside Weatherproof Motion Sensor Alarm 1 Receiver 2 Transmitters with 38 Chimes 200m/656ft Transmission for Indoor Outdoor Use $22.99 Was $26.89

Yolispa Multifunctional Wireless Driveway Alarm Outside Weatherproof Motion Sensor Alarm 1 Receiver 2 Transmitters with 38 Chimes 200m/656ft Transmission for Indoor Outdoor Use
current price Now $22.99, Was $26.89

Yolispa Multifunctional Wireless Driveway Alarm Outside Weatherproof Motion Sensor Alarm 1 Receiver 2 Transmitters with 38 Chimes 200m/656ft Transmission for Indoor Outdoor Use

3.8 out of 5 Stars. 30 reviews

Best seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included) From $10.99

Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
Available in additional 2 options
Options
From$1099

Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)

3.8 out of 5 Stars. 232 reviews

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black From $13.58

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black
Options
From$1358

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black

4.1 out of 5 Stars. 116 reviews

Bitiwend, 16ft Black Motion Household Sensors & Alarms

Bitiwend, 16ft Black Motion Household Sensors & Alarms
Black, variant on Bitiwend, 16ft Black Motion Household Sensors & Alarms
gray 1 sensor+1 receiver, variant on Bitiwend, 16ft Black Motion Household Sensors & Alarms
Options

Bitiwend, 16ft Black Motion Household Sensors & Alarms

4.1 out of 5 Stars. 88 reviews

Best seller Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)

Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)

Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)

4.1 out of 5 Stars. 135 reviews

Vivnt Recessed Door Contact Sensor VS-DW2100-345 $17.95 Was $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345
Sponsored
current price Now $17.95, Was $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345

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

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
Sponsored
current price Now $22.99, Was $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

4.5 out of 5 Stars. 2 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

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
current price Now $17.99, Was $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

4.3 out of 5 Stars. 291 reviews

Best seller PENDALI Driveway Alarm Wireless, Solar Outdoor Motion Sensor, Weatherproof 700 ft Long Range, 1 Receiver and 1 Sensor for Home, Yard, Gate and Farm $29.99 Was $39.99

PENDALI Driveway Alarm Wireless, Solar Outdoor Motion Sensor, Weatherproof 700 ft Long Range, 1 Receiver and 1 Sensor for Home, Yard, Gate and Farm
current price Now $29.99, Was $39.99

PENDALI Driveway Alarm Wireless, Solar Outdoor Motion Sensor, Weatherproof 700 ft Long Range, 1 Receiver and 1 Sensor for Home, Yard, Gate and Farm

4.4 out of 5 Stars. 173 reviews

Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS $10.50 Was $29.99

Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS
current price Now $10.50, Was $29.99

Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS

4.2 out of 5 Stars. 5 reviews

Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office Was $15.61

Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office

Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office

4.7 out of 5 Stars. 7 reviews

Entry Sensor $13.49 Was $14.99

Entry Sensor
current price Now $13.49, Was $14.99

Entry Sensor

4.7 out of 5 Stars. 77 reviews

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System $41.60 Was $49.99 $10.40/ea

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System
current price Now $41.60, Was $49.99
$10.40/ea

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System

4.6 out of 5 Stars. 34 reviews

Google Temp Sensor (1pk) 2nd Gen $39.98

Google Temp Sensor (1pk) 2nd Gen
current price $39.98

Google Temp Sensor (1pk) 2nd Gen

4.7 out of 5 Stars. 19 reviews

Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound $14.50

Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound
current price $14.50

Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound

4.2 out of 5 Stars. 23 reviews

Best seller GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases From $21.99

GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases
Options
Sponsored
From$2199

GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases

4.7 out of 5 Stars. 60 reviews

FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use $37.98

FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use
Sponsored
current price $37.98

FOUR E's Scientific Sump Alarm, High Water Alarm for Sump Pump & Septic Water, Weatherproof 110dB Audible Alarm with Float Switch for Indoor Use

Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat $31.99 Was $39.99

Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat
current price Now $31.99, Was $39.99

Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat

4 out of 5 Stars. 26 reviews

XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92

XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
current price $32.92

XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces

4.5 out of 5 Stars. 19 reviews

Best seller GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases From $21.99

GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases
Available in additional 2 options
Options
From$2199

GasKnight Natural Gas Detector & Propane Detector. Natural Gas Leak Detection and Monitor for Home, Kitchen, Camper, Trailer or RV. Plug-In Gas Leak Sensor for LPG, LNG, Methane & Butane Gases

4.7 out of 5 Stars. 60 reviews

C by GE Wire-Free Motion Smart Sensor, Battery Powered Motion Sensor, Bluetooth, Ambient Light Detection, White, 1-Pack $19.00 Was $24.99

C by GE Wire-Free Motion Smart Sensor, Battery Powered Motion Sensor, Bluetooth, Ambient Light Detection, White, 1-Pack
current price Now $19.00, Was $24.99

C by GE Wire-Free Motion Smart Sensor, Battery Powered Motion Sensor, Bluetooth, Ambient Light Detection, White, 1-Pack

4.2 out of 5 Stars. 49 reviews

Motion Sensor Replacement, Wall Light Switch Motion Sensor Outdoor Security Infrared PIR Motion Sensor Detector Outdoor For LED Flood Light $11.84

Motion Sensor Replacement, Wall Light Switch Motion Sensor Outdoor Security Infrared PIR Motion Sensor Detector Outdoor For LED Flood Light
current price $11.84

Motion Sensor Replacement, Wall Light Switch Motion Sensor Outdoor Security Infrared PIR Motion Sensor Detector Outdoor For LED Flood Light

1 out of 5 Stars. 2 reviews

Google Nest Temperature Sensor

Google Nest Temperature Sensor

Google Nest Temperature Sensor

4.8 out of 5 Stars. 1160 reviews

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Black, Battery Not Included)

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Black, Battery Not Included)
Black, variant on Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Black, Battery Not Included)
White, variant on Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Black, Battery Not Included)
Options

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(Black, Battery Not Included)

Eve Motion (Matter) - Smart motion sensor with light sensor, Thread $38.46 Was $59.96

Eve Motion (Matter) - Smart motion sensor with light sensor, Thread
current price Now $38.46, Was $59.96

Eve Motion (Matter) - Smart motion sensor with light sensor, Thread

Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank $69.99 Was $79.99

Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank
Sponsored
current price Now $69.99, Was $79.99

Sump Pump Alarm, Briidea Indoor/Outdoor High Water Septic Tank Alarm with 110dB Loud Alarm and Large LED Indicator, 10ft Level Float Switch, Ideal for Septic Sump Pump Pond Water Tank

4 out of 5 Stars. 2 reviews

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White $14.99

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White
Sponsored
current price $14.99

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White

4.3 out of 5 Stars. 7 reviews

Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm From $34.99

Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
Brown, variant on Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
1 receiver 1 brown sensor, variant on Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
Options
From$3499

Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm

4.5 out of 5 Stars. 96 reviews

eMACROS Wireless Outdoor Motion Detection Driveway Alarm, 500 FT Range, Weatherproof Home Security System From $12.99

eMACROS Wireless Outdoor Motion Detection Driveway Alarm, 500 FT Range, Weatherproof Home Security System
Available in additional 3 options
Options
From$1299

eMACROS Wireless Outdoor Motion Detection Driveway Alarm, 500 FT Range, Weatherproof Home Security System

4 out of 5 Stars. 65 reviews

New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc $3.48

New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc
current price $3.48

New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc

4.3 out of 5 Stars. 3 reviews

Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included From $19.97

Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included
Available in additional 2 options
Options
From$1997

Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included

4.2 out of 5 Stars. 37 reviews

CPVan Motion Sensor Alarm, 125dB, 328ft Range White PIR Motion Detector

CPVan Motion Sensor Alarm, 125dB, 328ft Range White PIR Motion Detector
Black, variant on CPVan Motion Sensor Alarm, 125dB, 328ft Range White PIR Motion Detector
White, variant on CPVan Motion Sensor Alarm, 125dB, 328ft Range White PIR Motion Detector
Options

CPVan Motion Sensor Alarm, 125dB, 328ft Range White PIR Motion Detector

4 out of 5 Stars. 29 reviews

YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, Hub is not Included From $24.59

YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, Hub is not Included
With Hub, variant on YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, Hub is not Included
Without Hub, variant on YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, Hub is not Included
Options
From$2459

YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, Hub is not Included

4.7 out of 5 Stars. 7 reviews

RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse $21.67

RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse
current price $21.67

RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse

5 out of 5 Stars. 1 reviews

MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED From $13.46

MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED
Available in additional 3 options
Options
From$1346

MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED

4.6 out of 5 Stars. 19 reviews

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required) $24.99

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required)
current price $24.99

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required)

4 out of 5 Stars. 4 reviews

Simplisafe MOTION SENSOR White CA001 GEN2 $19.99

Simplisafe MOTION SENSOR White CA001 GEN2
current price $19.99

Simplisafe MOTION SENSOR White CA001 GEN2

Driveway Alarm 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor-DIY Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use $24.99

Driveway Alarm 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor-DIY Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use
current price $24.99

Driveway Alarm 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor-DIY Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use

3.8 out of 5 Stars. 98 reviews

LINKPAL Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert with 2 PIR $18.98

LINKPAL Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert with 2 PIR
current price $18.98

LINKPAL Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert with 2 PIR

3.9 out of 5 Stars. 41 reviews

Upgraded Smart WiFi Motion Sensor Detector Alarm Indoor with Siren, Phone App, USB Power, Alert Recording, Scheduled Working Times - Infrared Motion Sensor Alarm for Home Garage $22.88

Upgraded Smart WiFi Motion Sensor Detector Alarm Indoor with Siren, Phone App, USB Power, Alert Recording, Scheduled Working Times - Infrared Motion Sensor Alarm for Home Garage
current price $22.88

Upgraded Smart WiFi Motion Sensor Detector Alarm Indoor with Siren, Phone App, USB Power, Alert Recording, Scheduled Working Times - Infrared Motion Sensor Alarm for Home Garage

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White $14.99

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White
current price $14.99

Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White

4.3 out of 5 Stars. 7 reviews

GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor From $17.99

GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor
1 Chime and 1 Receiver, variant on GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor
1 Sensor 1 Receiver 1 Remote, variant on GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor
1 Sensor 2 Receivers 1 Remote, variant on GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor
1 Sensor and 1 Receiver, variant on GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor
Options
From$1799

GREENCYCLE Motion Sensor Doorbell, Door Chime for Business Entry, Store Welcome Buzzer Monitor,Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell - 1 Receiver 1 Motion Sensor

4.5 out of 5 Stars. 88 reviews

eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage

eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage
1 receiver, variant on eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage
1 receiver with 1 sensor, variant on eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage
1 receiver with 2 sensors, variant on eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage
1 receiver with 3 sensors, variant on eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage
Options

eMACROS Solar Wireless Motion Sensor and Alarm, 1/2 Mile Range, Outdoor Waterproof Coverage

4.8 out of 5 Stars. 11 reviews

3 Packs Smart WiFi Door Sensor Alarm System with Remote APP Alerts 10 Chimes DIY Security for Home Office Pet Safety 2.4GHz Wireless Expandable up to 100 Devices From $22.67

3 Packs Smart WiFi Door Sensor Alarm System with Remote APP Alerts 10 Chimes DIY Security for Home Office Pet Safety 2.4GHz Wireless Expandable up to 100 Devices
Available in additional 2 options
Options
From$2267

3 Packs Smart WiFi Door Sensor Alarm System with Remote APP Alerts 10 Chimes DIY Security for Home Office Pet Safety 2.4GHz Wireless Expandable up to 100 Devices

5 out of 5 Stars. 1 reviews

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation From $23.90

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
1 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
2 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
3 Pcs, variant on Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
Options
From$2390

Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation

Discover Great Brands

Popular in Electronics Sensor

Related Products