door window alarm

        Using electromagnetic induction technology, the installation of simple, cheap. Open state, as long as open the doors and windows. Machines will be issued high-decibel alarm sound. Since then let you stay away from anti-theft doors and windows have to give you any inconvenience. Purposes: to install at home, companies, warehouse doors and windows, cabinets, drawers, etc. will not allow others to open the place, when the Rogue to prize open the doors and windows; or a business trip outside the hotels to open the door, it will issue a warning, please immediately view to ensure that your property damage and security.

 4. Opened the door to see whether or not to issue alarm siren

 3. Check settings, put the host switch to "ON" position.

 2. put another way using a straight line down the host prompt line at the door frame on viscosity.

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