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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.

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.

Gateway connect

Instantly Connects

The Gateway automatically connects to the strongest cell signal as soon as you plug it in. No landline, internet, or hotspot needed.

BarnTalk gateway and temperature sensor

Easy to Install

As a wireless platform, BarnTalk can be set up on your own in minutes. Plug in the Gateway, hang your sensors, and begin monitoring.

BarnTalk indoor temp sensor
IP67 Rated

Built for the Barn

The temp sensor measures anywhere from 14°F –122°F and has replaceable batteries with a lifespan of 2-3 years.

BarnTalk temperature app

Remotely Monitor

With the BarnTalk app, you can monitor your temps and resolve alarms at your fingertips. No more being left in the dark.

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

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Indoor Temp Sensor FAQs

You can connect up to 24 Temp sensors per Gateway.

We recommend having 1 sensor per room or every 100 feet in your barn. Sensors should be placed within 700 ft. of the Gateway for best connection.

The sensors all have lithium-ion batteries inside of them with a 2-3 year battery life. The water meter has an 8+ year battery life.

Receive alarms via text message, phone call, or push notification from the app. All alarms can be acknowledged in the BarnTalk app by touching the “Attend to Alarm” button. You can also resolve alarms via the keypad on your phone.

Yes. If you don’t want to be alerted — including when you're washing out barns or moving out animals, you can toggle off your threshold settings or silence your Gateway's alarms altogether.

No. BarnTalk is simple enough for anyone to set up on their own. Save the money!

One Gateway can cover up to two barns or poultry houses. The Gateway should be centrally located on your site.

Yes. BarnTalk’s 24+ hour backup battery ensures you can receive alarms and view conditions even when you’ve lost power.

There is no limit to how many people you add to your CallTree. They just need to be a contact in your phone to add them in. The contacts you add will be notified in the order of the CallTree when barn conditions fall outside of the norm.

For just $15/month, BarnTalk TotalCare provides complete coverage for any and all damage to your sensors. Lightning, water, fire, and physical damage—no questions asked. Click here to learn more.