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Wireless Dry Contact Sensor – Square


How it fits into the alarm platform: 

Connects wirelessly to the BarnTalk Gateway. The dry contact sensor should be placed within ~700 feet of the BarnTalk Gateway. On multi-barn sites, the dry contact sensor’s range can often extend across multiple buildings depending on proximity.

  • Can be used to monitor power, generators, controllers, feed lines, water pressure switches, and any equipment with a power relay.
  • Included Battery with 2-3 Year Life
  • IP67 Waterproof and Dustproof Rated
  • Tested for Maximum Durability in Harsh Conditions

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 Generators, Controllers, Feed Lines, and More.

The BarnTalk Dry Contact Sensor 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 can't connect!

Multi-directional arrow illustrating flexibility

Versatile Monitoring

Monitor power and other equipment in your barns, including generators, controllers, feed lines, water pressure switches, and more.

Icon of a check mark

Prevent Losses

Quickly respond to power outages or equipment issues with real-time alarms via text, call, or push notification from your BarnTalk app.

Details & Product Specifications




Power ON/OFF

Dry Contacts

DIN 1 Open/Closed; DIN 2 Open/Closed

Response Time

10 seconds

Power Supply

110-220 Supply Input 3.3 Volts Output (Comes with 2-prong plug-in for standard 110V outlet)

Battery Life

Up to 1 year on full charge

Working Environment

Temperature: 14 °F ~ 122 °F / -10 °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 / Ø72*280 mm


0.5 lbs / 252 g

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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Wireless Dry Contact Sensor FAQs