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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 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsiPad & 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(412)
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
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
164.8 out of 5 Stars. 16 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
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
124.8 out of 5 Stars. 12 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
1284.2 out of 5 Stars. 128 reviews
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
Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat $34.00 Was $39.99
Now$3400
current price Now $34.00, Was $39.99$39.99
Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat
264 out of 5 Stars. 26 reviews
Google Nest Temperature Sensor
Google Nest Temperature Sensor
11604.8 out of 5 Stars. 1160 reviews
Best seller Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
Best seller
Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
1354.1 out of 5 Stars. 135 reviews
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
Smart Home Temperature And Humidity Sensor, Wireless Digital Indoor Hygrometer Gauge with LED Indicator $31.38
$3138
current price $31.38Smart Home Temperature And Humidity Sensor, Wireless Digital Indoor Hygrometer Gauge with LED Indicator
Best seller Bitiwend, 16ft Black Motion Household Sensors & Alarms
Best seller
Bitiwend, 16ft Black Motion Household Sensors & Alarms
884.1 out of 5 Stars. 88 reviews
Shelly Flood Gen4 Wi-Fi, Zigbee & Matter Smart Flood Sensor with Bluetooth, Leak Detection Cable, Alexa, Google Home, Apple HomeKit $33.99
Sponsored
$3399
current price $33.99Shelly 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
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
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
194.6 out of 5 Stars. 19 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
Best seller
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)
2313.8 out of 5 Stars. 231 reviews
WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security $18.99
$1899
current price $18.99WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security
24.5 out of 5 Stars. 2 reviews
YoLinK LoRa Smart Door Sensor Starter Kit: 1/4 Mile Open-Air Range, Door Left-Open Reminders, Text/SMS, Email, App alerts, 5 Years Battery Life, Alexa, IFTTT, Home Assistant From $16.99
6 options
Available in additional 6 optionsFrom$1699
YoLinK LoRa Smart Door Sensor Starter Kit: 1/4 Mile Open-Air Range, Door Left-Open Reminders, Text/SMS, Email, App alerts, 5 Years Battery Life, Alexa, IFTTT, Home Assistant
374.6 out of 5 Stars. 37 reviews
Best seller Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System $40.99 Was $49.99 $10.25/ea
Best seller
Now$4099
current price Now $40.99, Was $49.99$49.99
$10.25/ea
Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System
344.6 out of 5 Stars. 34 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
Now$1900
current price Now $19.00, 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
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)
Eve Motion (Matter) - Smart motion sensor with light sensor, Thread $38.46 Was $59.96
Now$3846
current price Now $38.46, Was $59.96$59.96
Eve Motion (Matter) - Smart motion sensor with light sensor, Thread
Rollback Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White $14.99 Was $18.99
Rollback
Sponsored
Now$1499
current price Now $14.99, Was $18.99$18.99
Geeni Smart WiFi Water Leak Detector & Sensor, 80dB Alarm for Basement, Kitchen, Bathroom, White
74.3 out of 5 Stars. 7 reviews
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 $26.24 Was $34.99
Sponsored
Now$2624
current price Now $26.24, Was $34.99$34.99
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
Best seller Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
Best seller
Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
74.7 out of 5 Stars. 7 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
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
1164.1 out of 5 Stars. 116 reviews
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 $5.89 Was $6.99
Clearance
Now$589
current price Now $5.89, Was $6.99$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
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
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
XODO Motion Sensor, Smart Home Security Motion Detector with 360 Degree Detection, Easy Install, 2-Pack $19.99 $19.99/lb
$1999
current price $19.99$19.99/lb
XODO Motion Sensor, Smart Home Security Motion Detector with 360 Degree Detection, Easy Install, 2-Pack
113.3 out of 5 Stars. 11 reviews
Shelly BLU H&T Display ZB Black, Bluetooth & Zigbee Operated Temperature & Humidity Levels Sensor, E-Paper Display, Home Assistant, Alexa, Google Home, Real-Time Monitoring, Long-Life Battery $23.39 Was $25.99
Sponsored
Now$2339
current price Now $23.39, Was $25.99$25.99
Shelly BLU H&T Display ZB Black, Bluetooth & Zigbee Operated Temperature & Humidity Levels Sensor, E-Paper Display, Home Assistant, Alexa, Google Home, Real-Time Monitoring, Long-Life Battery
15 out of 5 Stars. 1 reviews
Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage, 2 pack $39.99
Sponsored
$3999
current price $39.99Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage, 2 pack
M Buder Smart Wireless Human Body Motion Sensor with Light Intensity Detector, 360-Degree Rotation Holder, 23 Feet Range, ZigBee Compatible for Indoor Home Security $25.47
$2547
current price $25.47M Buder Smart Wireless Human Body Motion Sensor with Light Intensity Detector, 360-Degree Rotation Holder, 23 Feet Range, ZigBee Compatible for Indoor Home Security
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
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
VALSEEL Smart WiFi Door Sensor,Wireless Window Sensor Real-time Message Notification,Home Security Door Open Entry Sensor $7.09 Was $8.99
Now$709
current price Now $7.09, Was $8.99$8.99
VALSEEL Smart WiFi Door Sensor,Wireless Window Sensor Real-time Message Notification,Home Security Door Open Entry Sensor
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
Vivint dw12 window and door sensor $33.97
$3397
current price $33.97Vivint dw12 window and door sensor
65 out of 5 Stars. 6 reviews
XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92
$3292
current price $32.92XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
194.5 out of 5 Stars. 19 reviews
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
Electrical Tools Smart Home Security Alarm for Door and Window Functional Remote Window Sensor with Compact Appliance Utility for Household Use $10.04 Was $16.53
Now$1004
current price Now $10.04, Was $16.53$16.53
Electrical Tools Smart Home Security Alarm for Door and Window Functional Remote Window Sensor with Compact Appliance Utility for Household Use
Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation From $23.90
From$2390
Aqara Motion Sensor - ZigBee Wireless Smart Human Body Detector for Mijia, Mi Home, and Apple HomeKit | Smart Home Automation
Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm From $34.99
From$3499
Hosmart Wireless Driveway Alarm 1/2 Mile Range Outdoor Motion Sensor Household Sensors & Alarm
964.5 out of 5 Stars. 96 reviews
Tuya WiFi Human Presence Sensor Motion Sensor 24G Radar Detection Smart Home Remote Control Security Protect $25.27
$2527
current price $25.27Tuya WiFi Human Presence Sensor Motion Sensor 24G Radar Detection Smart Home Remote Control Security Protect
Door Open Alarm Smart Door Window Sensor Smart Home Door Detectors Door and Window Burglar Alarms $9.69
$969
current price $9.69Door Open Alarm Smart Door Window Sensor Smart Home Door Detectors Door and Window Burglar Alarms
11 out of 5 Stars. 1 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
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 $12.59
$1259
current price $12.59Smart WiFi Door Sensor - 2.76x0.98in Wireless Window Alarm with Real-Time Alerts, Works with Smart Life App for Home Security, Garage Shop Monitoring
2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $15.66
$1566
current price $15.662Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
25 out of 5 Stars. 2 reviews
Simplisafe MOTION SENSOR White CA001 GEN2 $19.99
$1999
current price $19.99Simplisafe MOTION SENSOR White CA001 GEN2
YoLink LoRa Smart Vibration Sensor & Hub Starter Kit: Hub & Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, IFTTT From $24.59
From$2459
YoLink LoRa Smart Vibration Sensor & Hub Starter Kit: Hub & Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, IFTTT
74.7 out of 5 Stars. 7 reviews
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