The two-wire dry contact sensor detects a connection between two wires. An Armored Sensor™ IP67 weather-proof version is also available for outdoor and industrial use.

The contact sensor can be used as a bridge device to enable a wide variety of sensors. See the article connect third party sensors to lorawan with a dry contact bridge for  more information.


  • Based on LoRaWAN wireless technology
  • Very long range up to several miles
  • Excellent wireless penetration through structures such as walls and floors
  • Enclosure tamper detection
  • Automatic error reporting through supervisory messages
  • Over the air configuration

Part Numbers






LoRaWAN Dry Contact Sensor for Indoor Use (1 Pk)

North America / South America


LoRaWAN Dry Contact Sensor for Indoor Use (1 Pk)

Europe / United Kingdom


  • Doorbell press detection
  • Remote button press detection
  • Remote reed switch detection
  • General purpose contact sensor (two wire open/close detection)

Monitoring Sensor Activity

Radio Bridge provides a convenient web-based console where you can configure your sensors, monitor activity, set up alerts, and more. If you are buying products that require a data plan, you can buy the plan right on the console. If you are using sensor products that do not require a plan, the console is available for free. Click on the link below to get started.

Product Support

Please visit our support center to search our knowledge base or submit a question to our technical support team