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Surveillance EquipmentAll CamerasAll Home AssistantsAll PhonesAll Security CamerasApple HomeKit Compatible DevicesArloCell Phone AccessoriesComputer AccessoriesComputer MonitorsDesktop ComputersGeneral Electronic AccessoriesGoogleGoogle HomeGrades 6-12 ElectronicsHeadphonesiPad & TabletsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioRestored 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 AccessoriesWorks with AlexaWorks with Google Assistant
Smart Home Sensor(422)
Uses item details. Price when purchased online
Orbit B-Hyve Smart Flood, Leak Detector and Water Sensors, 3 Pack $34.39
Sponsored
$3439
current price $34.39Orbit B-Hyve Smart Flood, Leak Detector and Water Sensors, 3 Pack
133.9 out of 5 Stars. 13 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
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
1264.2 out of 5 Stars. 126 reviews
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Vivnt Recessed Door Contact Sensor VS-DW2100-345 $17.95 Was $19.95
Sponsored
Now$1795
current price Now $17.95, Was $19.95$19.95
Vivnt Recessed Door Contact Sensor VS-DW2100-345
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Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit $39.99
Sponsored
$3999
current price $39.99Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit
204.4 out of 5 Stars. 20 reviews
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack See price in cart
See price in cart
current price See price in cartEcobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack
1914.3 out of 5 Stars. 191 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)
1334.1 out of 5 Stars. 133 reviews
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Bitiwend, 16ft Black Motion Household Sensors & Alarms
Bitiwend, 16ft Black Motion Household Sensors & Alarms
854.1 out of 5 Stars. 85 reviews
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Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat $35.06 Was $39.99
Now$3506
current price Now $35.06, Was $39.99$39.99
Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat
253.9 out of 5 Stars. 25 reviews
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Smart Home Temperature And Humidity Sensor, Wireless Digital Indoor Hygrometer Gauge with LED Indicator $29.38
$2938
current price $29.38Smart Home Temperature And Humidity Sensor, Wireless Digital Indoor Hygrometer Gauge with LED Indicator
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
2 options
Available in additional 2 optionsFrom$1099
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
2273.7 out of 5 Stars. 227 reviews
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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
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
eMACROS Pro 4 Smart Solar Driveway Alarm (2.4G Wi-Fi Only) - App Push Notifications, 1/2 Mile Wireless Range Motion Sensor & Rechargeable Base Station with 3-Day Backup (No Camera) $56.99
Sponsored
$5699
current price $56.99eMACROS Pro 4 Smart Solar Driveway Alarm (2.4G Wi-Fi Only) - App Push Notifications, 1/2 Mile Wireless Range Motion Sensor & Rechargeable Base Station with 3-Day Backup (No Camera)
45 out of 5 Stars. 4 reviews
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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
1144.1 out of 5 Stars. 114 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
334.6 out of 5 Stars. 33 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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LINKPAL Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert with 2 PIR $18.98
$1898
current price $18.98LINKPAL Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert with 2 PIR
413.9 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
$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
NFTIGB Intelligent Motion Sensor for Smart Home Security, Detects Vibrations Tilts and Falls, Remote App Push Notifications, Adjustable Sensitivity, Zigbee Connection, White, 3.54 in / 90 mm $25.65
$2565
current price $25.65NFTIGB Intelligent Motion Sensor for Smart Home Security, Detects Vibrations Tilts and Falls, Remote App Push Notifications, Adjustable Sensitivity, Zigbee Connection, White, 3.54 in / 90 mm
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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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
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 $15.99 Was $31.99
Sponsored
Now$1599
current price Now $15.99, 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
2874.4 out of 5 Stars. 287 reviews
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Flash Deal 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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YoLink LoRa Smart Door Sensor Starter Kit: SpeakerHub Audio Hub & 2 Door Sensors - Up to 1/4 Mile Range, Door Left-Open Reminders, up to 5 Year Batteries, Alexa, IFTTT, Home Assistant From $16.99
6 options
Available in additional 6 optionsFrom$1699
YoLink LoRa Smart Door Sensor Starter Kit: SpeakerHub Audio Hub & 2 Door Sensors - Up to 1/4 Mile Range, Door Left-Open Reminders, up to 5 Year Batteries, Alexa, IFTTT, Home Assistant
374.6 out of 5 Stars. 37 reviews
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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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Philips Hue Smart Motion Sensor, Hub Required $65.82
$6582
current price $65.82Philips Hue Smart Motion Sensor, Hub Required
44 out of 5 Stars. 4 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
104.4 out of 5 Stars. 10 reviews
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 $24.99 Was $39.99
Now$2499
current price Now $24.99, 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
1614.4 out of 5 Stars. 161 reviews
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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)
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
184.6 out of 5 Stars. 18 reviews
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YoLink Motion Sensor, 1/4 Mile World's Longest Range Smart Home Indoor Wireless Motion Detector Sensor From $23.99
From$2399
YoLink Motion Sensor, 1/4 Mile World's Longest Range Smart Home Indoor Wireless Motion Detector Sensor
144.2 out of 5 Stars. 14 reviews
YoLink LoRa Smart Outdoor Motion Detector Sensor, Driveway Alert, Property Invasion/Tresspassing Detector, 1/4 Mile Open Air Range, Email/SMS/Push Alerts, Alexa, IFTTT, Home Assistant (Hub Required) From $35.59
Sponsored
From$3559
YoLink LoRa Smart Outdoor Motion Detector Sensor, Driveway Alert, Property Invasion/Tresspassing Detector, 1/4 Mile Open Air Range, Email/SMS/Push Alerts, Alexa, IFTTT, Home Assistant (Hub Required)
124.8 out of 5 Stars. 12 reviews
Door Alarm, AMIR Window Alarm Anti-Theft 125DB Door Alarm For Home Office Warehouse Shop Elderly Kids Security 6PCS From $21.99
Sponsored
From$2199
Door Alarm, AMIR Window Alarm Anti-Theft 125DB Door Alarm For Home Office Warehouse Shop Elderly Kids Security 6PCS
424.3 out of 5 Stars. 42 reviews
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Orbit B-Hyve Smart Flood, Leak Detector and Water Sensors, 3 Pack $34.39
$3439
current price $34.39Orbit B-Hyve Smart Flood, Leak Detector and Water Sensors, 3 Pack
133.9 out of 5 Stars. 13 reviews
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
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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Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $31.80
$3180
current price $31.80Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
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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 $23.38
$2338
current price $23.38Riousery 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
WiFi Human Presence Sensor Smart Motion Sensor Alerts Zone Positioning Human Body Exists Sensor for Home Security $10.38
$1038
current price $10.38WiFi Human Presence Sensor Smart Motion Sensor Alerts Zone Positioning Human Body Exists Sensor for Home Security
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] $23.23
![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)
$2323
current price $23.23M 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]
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
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
374.2 out of 5 Stars. 37 reviews
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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 $20.72
$2072
current price $20.72YAHHU 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
Tuya WiFi Smart Vibration Sensor Motion Detection Real-Time Remote Monitor Alarm for Home Window Drawers $12.90
$1290
current price $12.90Tuya WiFi Smart Vibration Sensor Motion Detection Real-Time Remote Monitor Alarm for Home Window Drawers
Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App From $22.30
4 options
Available in additional 4 optionsFrom$2230
Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App
11 out of 5 Stars. 1 reviews
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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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
Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound $14.50
$1450
current price $14.50Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound
234.2 out of 5 Stars. 23 reviews
Entry Sensor $13.49 Was $14.99
Now$1349
current price Now $13.49, Was $14.99$14.99
Entry Sensor
774.7 out of 5 Stars. 77 reviews
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
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 $80.81
$8081
current price $80.81WiFi 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
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