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Surveillance EquipmentAll CamerasAll GPS DevicesAll Home AssistantsAll PhonesAll Security CamerasApple HomeKit Compatible DevicesArloCell Phone AccessoriesComputer AccessoriesComputer MonitorsDesktop ComputersGeneral Electronic AccessoriesGoogleGoogle HomeGPS TrackersGrades 6-12 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsiPad & TabletsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioResold Garden & ToolsRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSamsung SmartThings Compatible DevicesSecurity CamerasSecurity Cameras and Security Camera SystemsShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Cameras by TypeSmart Energy and LightingSmart Home Assistants, Controllers & HubsSmart SpeakersSurveillance CamerasTablet AccessoriesTV AccessoriesWorks with AlexaWorks with Google Assistant
Smart Home Sensor(426)
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
1204.2 out of 5 Stars. 120 reviews
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Shelly Wave Door/Window White, Z-Wave Long Range Operated Sensor, Home Automation, Compatible with Alexa, Google Home, SmartThings & Home Assistant, Bulletproof Security, Lux & Tilt Angle Measurement $34.99
Sponsored
$3499
current price $34.99Shelly Wave Door/Window White, Z-Wave Long Range Operated Sensor, Home Automation, Compatible with Alexa, Google Home, SmartThings & Home Assistant, Bulletproof Security, Lux & Tilt Angle Measurement
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
Vivnt Recessed Door Contact Sensor VS-DW2100-345 $19.95
Sponsored
$1995
current price $19.95Vivnt Recessed Door Contact Sensor VS-DW2100-345
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Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack $84.99 Was $99.00
Now$8499
current price Now $84.99, Was $99.00$99.00
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack
1924.4 out of 5 Stars. 192 reviews
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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)
1244.1 out of 5 Stars. 124 reviews
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Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat $32.00 Was $39.99
Now$3200
current price Now $32.00, Was $39.99$39.99
Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat
243.9 out of 5 Stars. 24 reviews
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Bitiwend, 16ft Black Motion Household Sensors & Alarms
Bitiwend, 16ft Black Motion Household Sensors & Alarms
834.2 out of 5 Stars. 83 reviews
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Best seller Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System Was $49.99
Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System
324.7 out of 5 Stars. 32 reviews
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Best seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (4 Pcs) Home Alarm(Batteries not included) From $10.99
2 options
Available in additional 2 optionsFrom$1099
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (4 Pcs) Home Alarm(Batteries not included)
2143.8 out of 5 Stars. 214 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
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
2834.4 out of 5 Stars. 283 reviews
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Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm From $29.74
Sponsored
From$2974
Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
904.6 out of 5 Stars. 90 reviews
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Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS $29.99
$2999
current price $29.99Arlo All-in-One Sensor with 8 sensing functions for Home Security System MS1001-100NAS
54.2 out of 5 Stars. 5 reviews
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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
$2288
current price $22.88Upgraded 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
Google Nest Temperature Sensor
Google Nest Temperature Sensor
11624.8 out of 5 Stars. 1162 reviews
Clearance 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
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
1094.1 out of 5 Stars. 109 reviews
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Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack) $104.99
$10499
current price $104.99Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack)
25 out of 5 Stars. 2 reviews
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
104.4 out of 5 Stars. 10 reviews
HomeZone Wi-Fi Smart Keypad Controlled Window or Door Alarm with Magnetic Switch, Compatible with Alexa and Google Assistant, White, 4 oz $14.97
$1497
current price $14.97HomeZone Wi-Fi Smart Keypad Controlled Window or Door Alarm with Magnetic Switch, Compatible with Alexa and Google Assistant, White, 4 oz
663.6 out of 5 Stars. 66 reviews
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2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $15.18
$1518
current price $15.182Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
15 out of 5 Stars. 1 reviews
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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Toyanc Tuya ZigBee Smart Water Leak Sensor, Wireless Flood Detector with 55dB Built-in Alarm, IP54 Water-Resistant, Hub Required $19.99
Sponsored
$1999
current price $19.99Toyanc Tuya ZigBee Smart Water Leak Sensor, Wireless Flood Detector with 55dB Built-in Alarm, IP54 Water-Resistant, Hub Required
Tuya Smart Home WiFi Temperature & Humidity Sensor with 1M External Probe App Remote V y5396 $18.99
$1899
current price $18.99Tuya Smart Home WiFi Temperature & Humidity Sensor with 1M External Probe App Remote V y5396
Riousery Smart Home Temperature And Humidity Sensor High Accuracy 2.4GHz Wireless Digital Hygrometer Indoor Thermometer with LED Indicator For Room 4.72 inches / 12 cm $23.30
$2330
current price $23.30Riousery Smart Home Temperature And Humidity Sensor High Accuracy 2.4GHz Wireless Digital Hygrometer Indoor Thermometer with LED Indicator For Room 4.72 inches / 12 cm
Zigbee Smart Human Presence Sensor Mini Human Motion Sensor Infrared Light Sensor Detector with Alarm for Home Office $14.53
$1453
current price $14.53Zigbee Smart Human Presence Sensor Mini Human Motion Sensor Infrared Light Sensor Detector with Alarm for Home Office
Clearance Smart WiFi Door & Window Sensor - Wireless Home Security Entry Detector with Real-Time Message Notifications, Ideal for Monitoring Door/Window Open Status in Smart Homes Was $6.99
Smart WiFi Door & Window Sensor - Wireless Home Security Entry Detector with Real-Time Message Notifications, Ideal for Monitoring Door/Window Open Status in Smart Homes
YoLink LoRa Smart Door & Window Sensor: Up to 1/4 Mile Open-Air Range, Door Left-Open Reminders, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant, Home Security From $16.99
6 options
Available in additional 6 optionsFrom$1699
YoLink LoRa Smart Door & Window Sensor: Up to 1/4 Mile Open-Air Range, Door Left-Open Reminders, up to 5 Year Battery Life, Alexa, IFTTT, Home Assistant, Home Security
364.6 out of 5 Stars. 36 reviews
Tuya WiFi Human Presence Sensor Motion Sensor 24G Radar Detection Smart Home Remote Control Security Protect $23.38
$2338
current price $23.38Tuya WiFi Human Presence Sensor Motion Sensor 24G Radar Detection Smart Home Remote Control Security Protect
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included) From $12.49
From$1249
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
Tuya ZigBee Human Presence Sensor Intelligent PIR+Radar+Brightness APP Control Smart Home Devices,1 x Human presence sensor 1 x USB Type-C Cable,White $19.79
$1979
current price $19.79Tuya ZigBee Human Presence Sensor Intelligent PIR+Radar+Brightness APP Control Smart Home Devices,1 x Human presence sensor 1 x USB Type-C Cable,White
KFFKFF Wireless Door Chime, DC 12V, Contact Sensor Alarm with 656 ft Range, App-Controlled Remote, Door Alert System for Business, Store, Home, Office (6 Sensors + 1 Receiver) $50.99 $50.99/ca
Sponsored
$5099
current price $50.99$50.99/ca
KFFKFF Wireless Door Chime, DC 12V, Contact Sensor Alarm with 656 ft Range, App-Controlled Remote, Door Alert System for Business, Store, Home, Office (6 Sensors + 1 Receiver)
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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 $26.89
Sponsored
$2689
current price $26.89Natural 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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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
3 options
Available in additional 3 optionsFrom$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
154.5 out of 5 Stars. 15 reviews
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Best seller Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black $28.99 Was $39.99
Now$2899
current price Now $28.99, Was $39.99$39.99
Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black
1384.3 out of 5 Stars. 138 reviews
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Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included From $19.97
2 options
Available in additional 2 optionsFrom$1997
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included
364.2 out of 5 Stars. 36 reviews
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Tuya Matter Thread Door Window Sensor USB Powered Smart Home Smart Door Sensor Ala G1093 $18.98
$1898
current price $18.98Tuya Matter Thread Door Window Sensor USB Powered Smart Home Smart Door Sensor Ala G1093
Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $31.95
$3195
current price $31.95Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
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Tuya Smart Temperature and Humidity Sensor WiFi APP Remote Monitor for Smart Home Var SmartLife Work with Alexa $11.56
$1156
current price $11.56Tuya Smart Temperature and Humidity Sensor WiFi APP Remote Monitor for Smart Home Var SmartLife Work with Alexa
Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm $42.99
$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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C by GE Wire-Free Motion Smart Sensor, Battery Powered Motion Sensor, Bluetooth, Ambient Light Detection, White, 1-Pack $18.75 Was $24.99
Now$1875
current price Now $18.75, Was $24.99$24.99
C by GE Wire-Free Motion Smart Sensor, Battery Powered Motion Sensor, Bluetooth, Ambient Light Detection, White, 1-Pack
494.2 out of 5 Stars. 49 reviews
SimpliSafe Entry ES3 Door Sensor White Magnetic Home Security (Latest) $17.99
$1799
current price $17.99SimpliSafe Entry ES3 Door Sensor White Magnetic Home Security (Latest)
65 out of 5 Stars. 6 reviews
YAHHU WIFI Door Sensor Tuya APP Control Door Window Opening Security Alarm Sensor Magnetic Switch Wireless Detector Compatible with Alexa Google Home IFTTT ABS Material 3.74 inches / 9.5 cm $19.77
$1977
current price $19.77YAHHU WIFI Door Sensor Tuya APP Control Door Window Opening Security Alarm Sensor Magnetic Switch Wireless Detector Compatible with Alexa Google Home IFTTT ABS Material 3.74 inches / 9.5 cm
M Buder Tuya WIFI Intelligent Home Wireless Temperature Sensor, Home Automation Scene System Compatible with Alexa, Remote Monitoring Alarm App Control, 2.52 inches / 64 mm[cite: 1] $23.42
![M Buder Tuya WIFI Intelligent Home Wireless Temperature Sensor, Home Automation Scene System Compatible with Alexa, Remote Monitoring Alarm App Control, 2.52 inches / 64 mm[cite: 1]](https://i5.walmartimages.com/seo/M-Buder-Tuya-WIFI-Intelligent-Home-Wireless-Temperature-Sensor-Home-Automation-Scene-System-Compatible-Alexa-Remote-Monitoring-Alarm-App-Control-2-52_171159c3-6955-4d92-8aff-3c16b214e79b.6eb5bbd892a8e5a6b7a3e32000256953.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$2342
current price $23.42M Buder Tuya WIFI Intelligent Home Wireless Temperature Sensor, Home Automation Scene System Compatible with Alexa, Remote Monitoring Alarm App Control, 2.52 inches / 64 mm[cite: 1]
Vivitar Smart Home Wi-Fi Door Sensor $20.38
$2038
current price $20.38Vivitar Smart Home Wi-Fi Door Sensor
12 out of 5 Stars. 1 reviews
Shelly BLU Bluetooth Smart Home Automation Tilt Angle Luminosity Battery Door Window Sensor $19.99
$1999
current price $19.99Shelly BLU Bluetooth Smart Home Automation Tilt Angle Luminosity Battery Door Window Sensor
93.9 out of 5 Stars. 9 reviews
Smart Home Security Alarm System, QQZ WiFi Door Sensor with Remote Alerts, Real-Time Mobile Notifications for Doors Windows via SmartLife App $13.29 Was $16.79
Now$1329
current price Now $13.29, Was $16.79$16.79
Smart Home Security Alarm System, QQZ WiFi Door Sensor with Remote Alerts, Real-Time Mobile Notifications for Doors Windows via SmartLife App
Smart WiFi Door Sensor - 2.76x0.98in Wireless Window Alarm with Real-Time Alerts, Works with Smart Life App for Home Security, Garage Shop Monitoring
Smart WiFi Door Sensor - 2.76x0.98in Wireless Window Alarm with Real-Time Alerts, Works with Smart Life App for Home Security, Garage Shop Monitoring
ZigBee 3.0 Human Presence Sensor 24G 5V MMwave Radar with Siren Alarm Motion Detection Smart Life Home Automation DIY $22.59
$2259
current price $22.59ZigBee 3.0 Human Presence Sensor 24G 5V MMwave Radar with Siren Alarm Motion Detection Smart Life Home Automation DIY
15 out of 5 Stars. 1 reviews
WiFi Door and Window Sensor, Wireless DIY smart Home Security System, Featuring APP Alarm Notifications, in Collaboration with Alexa/Smart Life/Tuya, Suitable for Houses and Apartments
WiFi Door and Window Sensor, Wireless DIY smart Home Security System, Featuring APP Alarm Notifications, in Collaboration with Alexa/Smart Life/Tuya, Suitable for Houses and Apartments
Aeotec aerQ Temperature & Humidity Sensor: Smart Home Environmental Monitor $33.99
$3399
current price $33.99Aeotec aerQ Temperature & Humidity Sensor: Smart Home Environmental Monitor
14 out of 5 Stars. 1 reviews
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