With sensors at iAuditor, you can monitor conditions in real-time and be alerted when things go out of critical range. This not only empowers you to stay compliant and prevent asset loss but also allows you to make informed decisions based on historical sensor data trends. Currently, we offer two types of sensor hardware. iAuditor and Monnit. As both sensors are battery powered, you may need to replace their batteries after a while.

This article shows you how to replace the batteries for both the iAuditor and Monnit sensors.

Before you begin

So that you follow the correct set of instructions, please see which type of sensor you have below and what you’ll need to replace each type of sensor.


  • 3 x Energizer Lithium AA batteries

Monnit Industrial

  • Phillips head screwdriver
  • 1 x 3.6V AA battery

Monnit Commercial

  • Phillips head screwdriver
  • 2 x Alkaline (regular) AA batteries

Replace sensor batteries


  1. Switch off the sensor by holding the button for 3 seconds, until the light flashes purple 3 times and powers off.
  2. Remove the main body of the sensor from the mounting bracket using the side clips.
  3. Switch the sensor off.
  4. Turn to the back of the sensor.
  5. Unclip the battery hatch.
  6. Remove all three Energizer Lithium AA batteries and insert the new ones. Make sure the batteries are inserted in the correct orientations.
  7. Clip-on the battery hatch.
  8. Insert the sensor back inside the mounting bracket.
  9. Switch the sensor back on by holding the power button for 2 seconds, until the light flashes purple and then continues to blink.

Monnit Industrial and Commercial

  1. Dismount the sensor.
  2. Turn the sensor off.
  3. Unscrew the battery cover.
  4. Replace the batteries.
  5. Screw the battery cover back on.
  6. Switch the sensor back on.
  7. Re-mount the sensor in its location.
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