10x Window Door Alarm Wireless Home Security Entry Burglar Alarm & Sensor System
Open the door and see if the siren sounds. 10X alarm unit. Sensor type: alarm. 10x magnetic sensor. Alarm type: sound. Alarm unit: 4.5X1.5X1.5CM. Magnetic sensor: 9X3X2CM. Fix the host to the door / window with double-sided tape.