Door Window Entry Security Alarm
Power: DC 3V
Type: Warning sound
This product easy installation, only need stick each part on the host computer and its cover. or you could stick on the window or door. (keeps 5 millimeters about gaps). When some people illegal hit the engine case or the window (main copy separation), then it will alarm, warned that the intruder leaves. When one must operate the engine case, the gate, the window, may by the stop-go control. It is suitable use in the Internet bar, the resident housing, the office, the store counter and so on guarding against theft.
In constructs 90db the warning output, use 3×1.5V LR44 button battery (already including in within the aircraft)