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Wireless Outdoor Temperature Sensor


How it fits into the alarm platform: 

Connects wirelessly to the BarnTalk Gateway. With an 8’ lead on the probe and a wider temperature range than the indoor temperature sensor, this sensor iideal for monitoring external temperature, refrigerator and freezer temperatures, as well as the standard uses of the indoor temperature sensor. The outdoor temperature sensor should be placed within ~700 feet of the BarnTalk Gateway. On multi-barn sites, the temperature sensor’s range can often extend across multiple buildings depending on proximity.

  • Measures from -22°F – 122°F
  • Included Battery with 2-3 Year Life
  • IP67 Waterproof and Dustproof Rated
  • Tested for Maximum Durability in Harsh Conditions

★★★★★“They couldn't have made it easier to set up and use!” Robert S. | Product Review: Temperature Sensor

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 Outdoor Temps—and More

The BarnTalk Outdoor Temp 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!

Thermometer Icon

Real-Time Monitoring

Monitor temps 24/7 inside the BarnTalk mobile app, including a Daily Overview graph of temp trends.

Warning on mobile phone icon

Instant Alerting

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

Icon of a freezer

Flexible Uses

The 8-foot lead and wider temp range makes it ideal for monitoring external temp, fridge and freezer temps.

Monitor Outside Temps, Freezers, and More

Outdoor Temperature Sensor

The Outdoor Temperature Sensor’s wide temp range makes it ideal for monitoring external temp, refrigerator and freezer temps, as well as the standard uses of the wireless indoor temperature sensor.

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 temp sensor
Wide Temp Range

Built for the Barn

Outdoor temp sensor measures anywhere from -22°F – 122°F and has replaceable batteries with a lifespan of 2-3 years.

Outside temp on app
24/7 Visibility

Remotely Monitor

With the BarnTalk app, you can monitor outdoor temps, freezer temps, and more at your fingertips — from any location.

Details & Product Specifications



Measure Range

-22 °F ~ 122 °F / -30 °C ~ 50 °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: -22 °F ~ 122 °F / -30 °C ~ 50 °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 / Ø 72*280 mm


0.5 lbs / 252 g

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Outdoor Temp Sensor FAQs

You can connect up to 1 Outdoor Temp Sensor per Gateway.

Sensors should be placed within 700 ft. of the Gateway for best connection.

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

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!

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.

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