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Mount a LoRaWAN temperature sensor in a horizontal refrigerated display cabinet with static cooling

A guide for locating a temperature sensor in a refrigerated display and sales cabinet [counter] with a horizontal display opening in its upper part and accessible from above, equipped with a static cold-wall refrigeration system and no fans.

Sensor activation prior to mounting 

Because LoRaWAN sensors are powered off during shipment to comply with international shipping regulations, they need to be powered on and activated before mounting. This task is normally completed as part of quality assurance before the installation team receive the hardware.

  1. cabinet_horizontalcabinetstaticaircoolingdrawingDownload the Milesight Toolbox app from the Google Play or the Apple store.

  2. Open the Milesight Toolbox app on your mobile device and connect to the sensor with NFC to power it on. The app will display basic information and settings for the device if is recognized successfully.

  3. Read and configure the device by tapping Read/Write device in the app.

NOTE: It’s not necessary to update the device password. 

Troubleshooting NFC setup 

If you have difficulty setting up the sensor, check:

  • you are holding the mobile device close enough to the sensor while the app is turned on

  • remove the mobile device if it is inside a case or pouch that may be blocking the signal

If the mobile device still fails to read/write configurations via NFC, try moving further back (eg several feet) and try scanning again.  


Mount the sensor

  1. Unplug the cabinet to turn it off, being careful to follow any local safety and security rules.

  2. cabinet4_horizontal refrigerated display cabinet with static cooling

    The sensor–plate assembly (sensor mounted using an adapter plate) must be installed on the inner side wall of the display unit corresponding to the compressor area (the stepped side), centered longitudinally and aligned with the gray plastic divider of the frame and the internal white metal sheet. Use the top edge of the plate as a reference to ensure correct positioning before fastening it. Detailed mounting instructions are provided separately.

  3. Prepare the mounting locations by cleaning and drying the surface.

  4. Make sure to use an adaptor plate to prevent damage to components within the cabinet walls.

    • Mark two holes on the cabinet edge in a horizontal line. 

    • Drill screw holes according to the marks you have made.

    • Attach adaptor plate and then sensor using aluminium pop rivet.