Magentic contacts features:

● prevent thieves from giving an alarm when they open the door or window.

● it can be used to prevent children from going out or open dangerous cabinet door.

● installation method: magnetic control style

● alarm sound: 90 dB

● Use 2 1.5V no.7 batteries

scope of use:
1. Doors, windows, families, shops, merchants and other places
2. Anti-theft device for Internet cafe computer case