How to install and test the vibration sensor?
1. when installin on the door, The vibration sensor can alarm before intruder break in, while the door contact alarm after that, 2. when installing on the window, it can alarm when the intruder moves or break the window Note: It can not be installed where vibration/shock often occurs Pay attention to test when alarming: e.g. when installing it on the door, after that, knock the door, adjust the senstivity, mimic the normal knocking, make sure it would not alarm. Make it alarm when knocking it voilently When installing it on the window, make it alarm when the window moves about 20cm.
