Articles on: Battery

How do I replace the battery in sensors?

Replace battery for contact sensors


  1. Open the back cover of the sensor and take it off.


contact-sensor-___1.png


  1. Install the CR123A battery into the slot correctly.


contact-sensor-___2.png


Replace battery for motion sensors


  1. Twist the back cover of the sensor and take it off.


motion-sensor-___1.png


  1. Install the CR123A battery into the slot correctly.


motion-sensor-___2.png

Updated on: 19/05/2026