Visonic MCT-302 PERS Door/Window Contact

[Music] key security systems presents a tech support video how to change the battery in a Power Max large door contact the MCT 302 you will need 1 C r2 battery per device and a small Phillips head screwdriver use the phillips screwdriver to loosen the retaining screw and the lid will come off hinging from the top be careful as to not lose the screw after removing the cover from the sensor you may receive a tamper alert from your alarm you can unplug the telephone lead before you start this will stop the system from calling anybody once you have completed the battery change wait five minutes before plugging the telephone lead back in to ensure it has finished the calling cycle alternatively if you do receive a phone call from the system answer the call and press the number two on your phone's keypad to stop it calling the next number simply pull the old battery out from the clips then yo