Use the guide below to find the sensor that matches yours and follow the instructions.
Motion Sensor (2016 model)
- Remove sensor cover.
- Lever battery out of sensor.
- Loosely place new CR-2477 battery in sensor, then press down on battery until it securely 'clicks' into place.
- Replace cover, making sure that it lines up with the hole in the cover with component sticking out.
Motion Sensor (2019 model)
- Take sensor off magnetic arm.
- Slide grey cover up from back of sensor.
- Replace CR-2 battery.
- Replace cover by sliding it back onto sensor.
- Place sensor back on magnetic arm and adjust position.