Surveillance EquipmentAll CamerasAll Home AssistantsAll PhonesAll Security CamerasApple HomeKit Compatible DevicesCell Phone AccessoriesComputer AccessoriesComputer MonitorsDesktop ComputersGoogleGoogle HomeGrades 6-12 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsiPad & TabletsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSecurity 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
Sort by|
Surveillance EquipmentAll CamerasAll Home AssistantsAll PhonesAll Security CamerasApple HomeKit Compatible DevicesCell Phone AccessoriesComputer AccessoriesComputer MonitorsDesktop ComputersGoogleGoogle HomeGrades 6-12 ElectronicsHeadphonesHome Audio, Speakers & SoundbarsiPad & TabletsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSecurity 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
Alarm Temperature Sensor(224)
Uses item details. Price when purchased online
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
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
Save with
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
Save with
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
Save with
Google Nest Temperature Sensor
Google Nest Temperature Sensor
11624.8 out of 5 Stars. 1162 reviews
Save with
AcuRite Digital Wireless Temperature Monitor for Fridge and Freezer with Two Remote Temperature Sensor Thermometers, Custom Temperature Alarm for Max/Min Temperature in Home or Restaurants (00986) $39.99
$3999
current price $39.99AcuRite Digital Wireless Temperature Monitor for Fridge and Freezer with Two Remote Temperature Sensor Thermometers, Custom Temperature Alarm for Max/Min Temperature in Home or Restaurants (00986)
64.7 out of 5 Stars. 6 reviews
Best seller AcuRite Battery-Powered Indoor/Outdoor Digital Thermometer with Clock, White, 3.5" H x 2.3" W x 1.2" D $19.97
$1997
current price $19.97AcuRite Battery-Powered Indoor/Outdoor Digital Thermometer with Clock, White, 3.5" H x 2.3" W x 1.2" D
8694.2 out of 5 Stars. 869 reviews
Save with
Tumdkd 5-in-1 Portable Detector with Temperature Humidity Sensors, Plug-and-Play High Definition Display Accurate Alerts for Kitchen Garage RVs Apartments, AC Direct Insertion CO Monitor $28.47
$2847
current price $28.47Tumdkd 5-in-1 Portable Detector with Temperature Humidity Sensors, Plug-and-Play High Definition Display Accurate Alerts for Kitchen Garage RVs Apartments, AC Direct Insertion CO Monitor
15 out of 5 Stars. 1 reviews
Clearance Digital Electronic Clock, LED Display Alarm Clock with Snooze Function, 12/24H Switching, Countdown Timer, Stereo Digital Display, Suitable for Bedroom/Dormitory From $5.64
From$564
Digital Electronic Clock, LED Display Alarm Clock with Snooze Function, 12/24H Switching, Countdown Timer, Stereo Digital Display, Suitable for Bedroom/Dormitory
SimpliSafe Smart Indoor Temperature Sensor, Wi-Fi Connected, Wireless - White $22.99
$2299
current price $22.99SimpliSafe Smart Indoor Temperature Sensor, Wi-Fi Connected, Wireless - White
Refrigerator Thermometer, AMIR Wireless Indoor Outdoor Thermometer Fridge Thermometer with Audible Alarm Temperature Gauge Thermometer for Refrigerator Freezer Kitchen White From $19.99
Sponsored
From$1999
Refrigerator Thermometer, AMIR Wireless Indoor Outdoor Thermometer Fridge Thermometer with Audible Alarm Temperature Gauge Thermometer for Refrigerator Freezer Kitchen White
394.4 out of 5 Stars. 39 reviews
Save with
NineLeaf Driveway Alarm, Motion Sensor Alarm Outdoor, Home Security Business Detect Alert with 1 Waterproof Radar Infrared Sensor 1 Receiver 1 Remote, 17 Chime Tunes, LED Indicators for Outdoor Use From $27.88
Sponsored
From$2788
NineLeaf Driveway Alarm, Motion Sensor Alarm Outdoor, Home Security Business Detect Alert with 1 Waterproof Radar Infrared Sensor 1 Receiver 1 Remote, 17 Chime Tunes, LED Indicators for Outdoor Use
53.6 out of 5 Stars. 5 reviews
Save with
Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat $36.00
$3600
current price $36.00Honeywell Home Smart Room Sensor Designed for the T9 Series Thermostat
243.9 out of 5 Stars. 24 reviews
Save with
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
Save with
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]
RuuviTag Pro 3in1 Wireless Bluetooth Temperature, Air Humidity, and Motion Sensor IP67. Free app for Android/iOS. Made in Europe $57.90
$5790
current price $57.90RuuviTag Pro 3in1 Wireless Bluetooth Temperature, Air Humidity, and Motion Sensor IP67. Free app for Android/iOS. Made in Europe
45 out of 5 Stars. 4 reviews
Save with
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
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
UttpKLBx 5-in-1 Portable CO Detector for Home – Temperature Humidity Sensor Plug-and-Play, Suitable for Kitchen Garage RV & Apartments
UttpKLBx 5-in-1 Portable CO Detector for Home – Temperature Humidity Sensor Plug-and-Play, Suitable for Kitchen Garage RV & Apartments
M Buder Tuya WIFI USB Rechargeable Temperature Humidity Detector LCD Display IR Remote Controller for Home Alexa, Black $35.67
$3567
current price $35.67M Buder Tuya WIFI USB Rechargeable Temperature Humidity Detector LCD Display IR Remote Controller for Home Alexa, Black
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
Save with
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
Save with
6 In 1 Portable Environmental Monitor Detector, HD Temperature Humidity Display Alarm System Real Time Sensor for Home RV Hotel Camping Car Travel Indoor Outdoor Use Smart Monitoring Device
6 In 1 Portable Environmental Monitor Detector, HD Temperature Humidity Display Alarm System Real Time Sensor for Home RV Hotel Camping Car Travel Indoor Outdoor Use Smart Monitoring Device
Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display $21.78
$2178
current price $21.78Wifi Natural Gas Sensor Tuya Smart Alarm Gas Leakage Detector Fire Security Digital LCD Temperature Display
Tuya WiFi Temperature Sensor Thermometer Detector Smart Life Home Thermostat Control Alarm Remote Monitor Freezer Test ,Compact and Stylish $90.46
$9046
current price $90.46Tuya WiFi Temperature Sensor Thermometer Detector Smart Life Home Thermostat Control Alarm Remote Monitor Freezer Test ,Compact and Stylish
Tuya WiFi Temperature and Humidity Sensor Indoor Humidity Sensor APP Monitoring for Home Assistant $11.00
$1100
current price $11.00Tuya WiFi Temperature and Humidity Sensor Indoor Humidity Sensor APP Monitoring for Home Assistant
Additional Temperature Sensor Household Sensor & Alarm $35.65
$3565
current price $35.65Additional Temperature Sensor Household Sensor & Alarm
Refrigerator Thermometer, AMIR Wireless Indoor Outdoor Thermometer Fridge Thermometer with Audible Alarm Temperature Gauge Thermometer for Refrigerator Freezer Kitchen White
Refrigerator Thermometer, AMIR Wireless Indoor Outdoor Thermometer Fridge Thermometer with Audible Alarm Temperature Gauge Thermometer for Refrigerator Freezer Kitchen White
394.4 out of 5 Stars. 39 reviews
Save with
5-in-1 Portable Detector, LCD Display Temperature Humidity Gauge with High Accuracy Sensor, High-Definition Display Accurate Alerts Ideal For Kitchen Garage RVs Apartments $23.95 Was $26.91
Now$2395
current price Now $23.95, Was $26.91$26.91
5-in-1 Portable Detector, LCD Display Temperature Humidity Gauge with High Accuracy Sensor, High-Definition Display Accurate Alerts Ideal For Kitchen Garage RVs Apartments
Best seller YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required From $21.99
4 options
Available in additional 4 optionsFrom$2199
YoLink Smart Wireless Temperature & Humidity Sensor, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required
464.3 out of 5 Stars. 46 reviews
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)
Save with
Best seller Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property $18.99
Sponsored
$1899
current price $18.99Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property
914.1 out of 5 Stars. 91 reviews
Save with
Clearance Tuya WiFi Temperature Humidity Sensor Smart Linkage Alarm App Remote Monitoring Voice Control Home Automation Was $11.67
Tuya WiFi Temperature Humidity Sensor Smart Linkage Alarm App Remote Monitoring Voice Control Home Automation
Honeywell Ademco 5821 Wireless Temperature & Leak Sensor Home Security Monitoring $44.55
$4455
current price $44.55Honeywell Ademco 5821 Wireless Temperature & Leak Sensor Home Security Monitoring
Nieyigj Temperature Sensor Humidity Monitor Thermometer Hygrometer Remote Control for Home $17.92
$1792
current price $17.92Nieyigj Temperature Sensor Humidity Monitor Thermometer Hygrometer Remote Control for Home
WiFi Temperature Sensor Tuya Thermometer Detector Digital Display Home Smart Life App Alert Freezer Water Alarm US Plug $26.78
$2678
current price $26.78WiFi Temperature Sensor Tuya Thermometer Detector Digital Display Home Smart Life App Alert Freezer Water Alarm US Plug
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
Save with
Home Wireless Thermometer (One Unit for Two Users) for Indoor and Outdoor Refrigerators Thermometer with Sound Alarm $19.99
$1999
current price $19.99Home Wireless Thermometer (One Unit for Two Users) for Indoor and Outdoor Refrigerators Thermometer with Sound Alarm
Smart White LCD Temperature and Humidity Sensor with App Control, Data Storage, and Alerts $19.99
$1999
current price $19.99Smart White LCD Temperature and Humidity Sensor with App Control, Data Storage, and Alerts
Venstar ACC-TSENWIFIPRO Pro Wi-Fi Wireless Temperature Sensor $135.49
$13549
current price $135.49Venstar ACC-TSENWIFIPRO Pro Wi-Fi Wireless Temperature Sensor
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
Tuya Smart WiFi Temperature Humidity Sensor Meter Smart Home Wireless Bluetooth-compatible Temperature Humidity Alarm Sensor by YFind $12.69
$1269
current price $12.69Tuya Smart WiFi Temperature Humidity Sensor Meter Smart Home Wireless Bluetooth-compatible Temperature Humidity Alarm Sensor by YFind
UbiBot Waterproof Temperature Humidity Sensor, White $89.99
$8999
current price $89.99UbiBot Waterproof Temperature Humidity Sensor, White
1pc For SONOFF SNZB-02D Wireless LCD Display Smart Temperature Humidity Sensor $21.96
$2196
current price $21.961pc For SONOFF SNZB-02D Wireless LCD Display Smart Temperature Humidity Sensor
YAHHU Smart Sensor for TUYA Zigbee Temperature Humidity Light 3 in 1 Recording Device with LCD Screen Display, Wireless Home Automation Detector, Environmental Monitor $28.74
$2874
current price $28.74YAHHU Smart Sensor for TUYA Zigbee Temperature Humidity Light 3 in 1 Recording Device with LCD Screen Display, Wireless Home Automation Detector, Environmental Monitor
Taylor Precision Products Wireless Indoor/Outdoor Weather Station $28.88 Was $33.36
Now$2888
current price Now $28.88, Was $33.36$33.36
Taylor Precision Products Wireless Indoor/Outdoor Weather Station
704.2 out of 5 Stars. 70 reviews
Save with
Honeywell Home PROSIXTEMP ProSeries 2-Way Wireless Temperature Sensor $58.99
$5899
current price $58.99Honeywell Home PROSIXTEMP ProSeries 2-Way Wireless Temperature Sensor
Kieccall Dual Zone Wireless Thermometer Monitor, Indoor Outdoor High Precision Electronic Detector with Alarm for Refrigerator Garage Cold Storage Use Gift Was $29.99
Kieccall Dual Zone Wireless Thermometer Monitor, Indoor Outdoor High Precision Electronic Detector with Alarm for Refrigerator Garage Cold Storage Use Gift
Smart Temperature Sensor Precise Real Temperature Display Easily Manage Your Indoor Environment Through The App . $12.60
$1260
current price $12.60Smart Temperature Sensor Precise Real Temperature Display Easily Manage Your Indoor Environment Through The App .
Climate Pal by Keep Connect Wireless Temperature & Humidity Sensor | Battery-Powered Monitor with SMS/Email Alerts & Optional Cloud Integration $49.99
$4999
current price $49.99Climate Pal by Keep Connect Wireless Temperature & Humidity Sensor | Battery-Powered Monitor with SMS/Email Alerts & Optional Cloud Integration
12 out of 5 Stars. 1 reviews
Other options to consider(155)
Popular in Alarm Temperature Sensor
- Remote Temperature Sensors
- Temperature Sensor App
- Home Freeze Alarms
- Low Temperature Alarm For House
- Wifi Temperature Monitoring
- Wifi Temperature Sensor
- Smart Smoke Alarms that work with Google Assistant
- Carbon Monoxide Alarms
- Smart Smoke & Gas Detectors
- Smart Water Detectors
- All Smart Detectors & Smart Sensors
- Fire Alarms
Related Products
EVA LOGIK Modern Ultra-Thin Window Alarm with Loud 120dB Alarm and Vibration Sensors Compatible with Virtually Any Window, Glass Break Alarm Perfect for Home, Office, Dorm Room- 4 Pack
EVA LOGIK Modern Ultra-Thin Window Alarm with Loud 120dB Alarm and Vibration Sensors Compatible with Virtually Any Window, Glass Break Alarm Perfect for Home, Office, Dorm Room- 4 Pack
TONAIN 90 dB, White Magnetic Household Sensors & Alarms
TONAIN 90 dB, White Magnetic Household Sensors & Alarms$4.48current price $4.48Caregiver Smart Solutions Individual Temperature and Humidity Sensor
Caregiver Smart Solutions Individual Temperature and Humidity Sensor$79.00current price $79.00Zoeller 100763 Aquanot Flood Alert Alarm
Zoeller 100763 Aquanot Flood Alert Alarm$37.99current price $37.99Risco ViTRON Plus Acoustic Glass Break Detector (RG71FM)
Risco ViTRON Plus Acoustic Glass Break Detector (RG71FM)$37.67current price $37.67Briidea Power Failure Outage Alarm for Freezer, with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage
Briidea Power Failure Outage Alarm for Freezer, with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage$19.99current price $19.99First Alert TWLD3005-001 L2 WiFi Water Sensor And Switch Leak Detector
First Alert TWLD3005-001 L2 WiFi Water Sensor And Switch Leak Detector$106.62current price $106.62Smart Water Alarm Sensor with WIFI, Water Leakage Detection, Sound Alarm, Remote Monitoring via APP, Works with Smart Voice Assistants, No Installation Required, Long Standby Time
Smart Water Alarm Sensor with WIFI, Water Leakage Detection, Sound Alarm, Remote Monitoring via APP, Works with Smart Voice Assistants, No Installation Required, Long Standby Time$6.99current price $6.99Honeywell 5853 Wireless Glass Break Detector Alarm
Honeywell 5853 Wireless Glass Break Detector Alarm$75.26current price $75.26Door/Window Sensor with External Contact Input
Door/Window Sensor with External Contact Input$31.99current price $31.99Sump 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
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$69.99current price $69.99ZigBee TUYA Smart Water Leak Detector, Flood Sensor, Remote Monitoring Via Tuya Zigbee Gateway, Water Tank Full Alarm
ZigBee TUYA Smart Water Leak Detector, Flood Sensor, Remote Monitoring Via Tuya Zigbee Gateway, Water Tank Full Alarm$11.44current price $11.44
