1. doors, Windows, homes, shops, businesses and other broad place

2. Internet Cafe computer chassis intrusion this product is easy to install, just copy paste, cover and chassis separately, or on both Windows, and alignment (leave about 5 mm clearance). When the illegal chassis or when Windows (primary and secondary separation), the alarm can be issued a strong warning, warn intruders to leave. His boot box, doors, Windows, and can be controlled by a switch. Apply to Internet cafes, residential areas, offices, shop counters and other anti-theft. Built-in 90dB alarm output, use 3x1.5V LR44 button cell (included in the computer) product description: compact size and ease of installation, provided double-sided adhesive is easily installed in the door or window, is an affordable, economical and practical technical preventive measures. In our local, has been fully affirmed by residents, police. Just copy pasted on the doors and frames separately, or on both Windows, and alignment (leave about 5 mm clearance). Once a thief breaking, break Windows, attempted theft (separation of main and auxiliary), send a strong alarm alarm, deter thieves, reminding everyone around master thief. When I am gonna open the door, window, and can be controlled by a switch. Suitable for residential, Office, shop counters and other anti-theft.