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Wireless Indoor Temperature Sensor


How it fits into the BarnTalk alarm platform: 

Connects wirelessly to the BarnTalk Gateway. For best results, we recommend one temperature sensor for every room or approximately every 100 feet in larger buildings with open air spaces. Temperature sensor should be placed within ~700 feet of the BarnTalk Gateway. On multi-barn sites, the temperature sensor’s range can often extend wirelessly across multiple buildings depending on proximity.

  • Calibrated for 14°F 122°F
  • Included Battery with 2-3 Year Life
  • IP67 Waterproof and Dustproof Rated
  • Tested for Maximum Durability in Harsh Conditions

★★★★★ “It's very nice to see all the temperatures and data on your phone in the app. Very convenient.” Justin L. | Product Review

BarnTalk is the only wireless barn alarm with certified multi-carrier connectivity built right into the system. Once you plug the BarnTalk Gateway into power, it connects to the strongest local cell tower, regardless of carrier, eliminating the need for a landline, WiFi, or hotspot.BarnTalk sends alarms via push notification, SMS text message or phone call based on the user’s preferences.For optimal alarms and monitoring, you’ll need a BarnTalk subscription. This subscription covers connectivity and data costs.


Monitor Barn Temps in Real-Time.

The BarnTalk Indoor Temperature Sensor connects wirelessly to the BarnTalk Gateway, which is the brains of the system. The gateway includes built-in cellular connectivity for rural areas. It works even where your phone has no service!

Person holding a mobile phone to monitor barn conditions

Real-Time Monitoring

Monitor barn temps 24/7 inside the BarnTalk app to prevent losses and optimize growing conditions.

Warning on mobile phone icon

Instant Notifications

Quickly respond to temp changes and receive alarms via text message, phone call, or push notification from the app.

Icon of a check mark

Proactively Detect Problems

Monitor trends and changes in temp at your fingertips to identify issues before they lead to losses.

Details & Product Specifications



Measure Range

14 °F ~ 122 °F / -40 °C to 75 °C


±1 °F / 0.5 °C


0.2 °F / 0.1 °C

Power Supply

Disposable Lithium Battery

Battery Life

Up to 2.5 years

Working Environment

Temperature: 14 °F ~ 122 °F / -40 °C to 75 °C | Relative Humidity: 0 ~ 99.9% RH with no condensation


High Sensitivity 915 ISM frequency band LoRa Module

Protection Level


Shell Material

Nylon Plastic


Ø 3 x 6 1⁄4 inch / Ø72*280 mm


0.5 lbs / 252 g


Free Hanging

Install in 10 Minutes

Easy DIY Install

BarnTalk is a plug-and-play, wireless alarm that can be set up in 10 minutes. Save the money on hiring an electrician.

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Indoor Temp Sensor FAQs