metal material door alarm

Specifications

metal material door alarm
1.can prevent intruder get into the room and emit loud sound for help
2.CE&ROHS
3.Factory service

metal material door alarm 

1. powerful 135DB alarm with on-off switch
2. compact and lightweight, great for travel
3. wedge-shaped design and non-skid pad on the bottom of unit prevent door from opening
4. use it when you are out, when you are alone, or when you are traveling
5. good for dormitory rooms and hotel rooms
6. no installation required
7. requires 1pc 6F229V battery (included)
8. if an intruder attempts to open the door, the wedge-shaped design and non-skip pad on the bottom of the unit will prevent it from opening and activate a alarm, which will scare off the would-be intruder and alert you to the attempted entry.