‎How To Replace Water Sensor Battery | SimpliSafe Support Home

How To Replace Water Sensor Battery


The Water Sensor takes a single CR-2032 Lithium 3V battery and has a life expectancy of up to 5 years depending on placement and usage.

To change your Water Sensor battery, twist the bottom and top apart and replace the battery inside. To close it again, make sure that the grooves are aligned before twisting it shut.

If your sensor is still offline after replacing the battery, skip to the section below for troubleshooting steps.

Is your Water Sensor still offline after replacing the battery?

If the sensor does not come back online after changing the battery, it’s possible that your sensor has been offline for too long. The best step would be to remove the sensor from the SimpliSafe® Mobile App and then add it back to your system.

To remove your Water Sensor:

  1. Open the SimpliSafe® Mobile App on your phone or tablet

  2. Choose My System from the bottom navigation bar

  3. Select Device Settings

  4. Tap on the sensor you wish to remove

  5. Choose ‘Remove Device’

Once you have removed your sensor, you can add it back using our Installation Guide.