... alarm/ Anti-theft electronic dog/ Magnetic door alarm/Earthquake alarm, quake alarm Adjustable sensitivity vibration alarm/ Anti-theft electronic dog/ Magnetic door alarm/Earthquake alarm, quake alarm ... or closed, due to vibration, the alarm began to alarm, the alarm continued to 8-12 seconds, the ... in the machine face, the two 1.5V AAA batteries can be installed.2. Alarm installationRemove the ...