hot seller: 50pcs Door/Window Entry Alarm new Windows Aarm Magnetic Door Alarm

Description

Alarm function introduction:

●  prevents open door or window alarm

● Installation: Magnetron type

● Alarm sound of 90 decibels

Installation Method:

1. With double-sided tape to the host at a fixed door / window up,

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

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

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

        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.