How to setup your cold room/freezer sensor

Setting up cold room sensors are a bit different from our other sensors. In this article we will explain how to do it.

The device is shipped with the batteries installed and in a state of DEEP-SLEEP until activated with a magnet. There is no need to open the enclosure to activate the device.

  • Step 1: Make sure the gateway is turned on and connected to the network.
  • Step 2: Place the magnet within 2 cm of the "Magnet Switch" on the side of the device for more than 3 seconds but less than 10 seconds.  The exact location of the "Magnet Switch" is shown as the "Reed Switch" in the diagram below (it will be an embossed image of a horseshoe-shaped magnet). You'll know you got it when the "Network Join" light blinks.

    NOTE: We have found the magnet that comes with the device to not be strong enough for activation. You may need to find a rare-earth magnet to use (usually a strong refrigerator magnet will do).
  • Step 3: Remove magnet from device. the LED will blink until device has joined the gateway network.

If you have trouble with any of these steps we are happy to help! Please contact us at