The app will alert you when the sensor battery is low. The sensor uses a CR2450 lithium coin cell battery. You can check the battery level for each of your sensors in the app under Devices. A battery should last two years or more depending on use.
The sensor consumes a little more power and has a shorter battery life if the probe is left underwater. Therefore, do not leave the probe submerged for long periods of time.
To change a Water Leak Sensor battery:
- Remove the sensor cover.
- Remove the battery with a small Phillips head screwdriver.
- Replace the battery, positive (+) side face up.
- Replace the sensor cover.