by Administrator, September 29 2018
Prepare a CR1632 battery. Apply a light force to tilt open the upper cover of the sensor. Remove the existing battery by hand. Place the new button cell battery in the battery slot. Please make sure that the positive side of the battery should face upwards. Align the top cover of the sensor with the battery cover and press firmly to fasten the battery cover to the sensor. The battery cover is successfully attached.