Multiple Alarm Modes make it wider use. Burglar alarm;
30 seconds alarm; Doorbell Sound; Di-Di remind alarm (intermittently ringing).
Perfect for home, business, office, apartment, dorm rooms,garage, and anything you wish to protect.
It can be easily install on Door/Sliding Door/Sliding Window/Sash Window/Drawer/Refrigerator/Safe.
NOTICE: MAKE SURE THE GAP BETWEEN THE ALARM AND MAGNET PART WITHIN 0.59 INCHES/ 1.5 CM.