Door Handle Sensor, Hotel Travel Burglar Alarm, Body Contact Sensor Burglar Alarm Door Handle Alarm – 110dB Home Security Door Handle Alarm – 600 feet (185 Meters) Away can be Heard

Dual-mode door and window alarm: easy to use, alarm sound, no omission, no random alarm.
Used for: family, rental room, door security, dormitory, hotel, guesthouse, warehouse security, shops, counters, gold shops, bank counter security, travel, travel with security.
Easy to operate: easy to use, one-button switch control, dual mode selection.
Switch, alarm mode integrated key, push up is the doorbell, push down is the alarm sound, when not in use, on the key to restore.
Usage:
1. Three no.7 batteries are put into the battery slot.
2. The required sensitivity (H high, L medium, O low) for dialing.
3. Hang the product on the door/window handle and hold it still.
4. Turn on the switch and get to work.