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R311A Wireless Window Sensor

This page has not been fully updated to represent the latest state of the Helium Network following the migration to Solana on April 18, 2023.

R311A Wireless Window Sensor

The R11A is equipped with a reed sensor, which can be used to detect the status of the door and window. When the window is opened, R311A sends an alarm message to the control center. R311A utilizes the latest ultra-low power consumption technology and requires no wiring. It requires just button batteries to support its operation.



LoRaWAN device type:

  • Class A end-device


  • motion
  • battery


  • width: 35 mm
  • length: 57 mm
  • height: 15.2 mm


  • 43.8 grams


  • type: 2 x CR2450 button cell battery / 3.0 V / 620 mAh per button cell
  • replaceable: True


  • Alerts can be set via SMS text and email (optional).

Content generated from LoRaWAN-devices