KERUI Wireless Magnetic Door Sensor

Features:
*The independent door sensor can work alone, once triggered, it will send out 120db warning to scare away the thief.
*Simply attach one piece to your door,window or cabinet door, and attach the other piece to the door or window frame.
*Ideal intrusion warning for homes, apartments, dorms, offices, hotel rooms, warehouse, garages, shops, counter, Internet bar, etc.
*Excellent design, tiny and fashion. Easily install with adhesive tape.
*With ON/OFF switch. Low-consumption design, more power-saving.