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2. Linking your first sensor

  1. Before linking your sensor, perform the following:
  • Turn Bluetooth® ON
  • For Android devices, turn Location Services ON which Android requires when linking to Low Energy Bluetooth devices
  • Make sure you have an internet connection
  • Remove the plastic film on the front of the sensor
  • IMPORTANT: Before beginning the linking process, make sure all other sensors are at least 10 feet away from the sensor you are linking.
  1. Open the Humiditrak App and then from the Instruments page select the + button in the upper left hand corner.

3. When prompted, remove the plastic pull tab from your sensor and follow the on-screen instructions. If you have previously removed the tab before linking the sensor, remove the battery cover on the sensor, remove the battery, then re-install the battery and cover. When the plastic tab is removed or the battery re-installed, make sure the LED on the front of the sensor blinks 4 times.


  1. If it fails, check your Bluetooth and internet connection and select Retry. If linking the sensor continues to fail, please contact support.

  1. Wait for the linking process to complete then tap “Continue”.

  1. Enter the sensor profile information on the Profile page. When completed, tap “Save”.