Door Magnetic Wireless Bell Door And Window Alarms Strong Adhesive Wolfproof Anti-theft Alarms(Black)

1. Voltage: DC3.6V
2. Standby time: 3-6 months
3. Alarm volume: 110dB-120dB
4. Power supply: 3 x AG13 button batteries
5. Door magnet alarm, easy to install, long standby time, loud alarm, stable and reliable, compact and hidden
6. Designed for door and window anti-theft design, installation using double-sided tape, firm and very convenient
7. Weight: alarm about 35 g, magnetism about 8 g
8. Size: the alarm is about 4 x 5 x 1.5 cm, the magnet is about 1.5 x 5 x 1.5 cm

Door magnetic alarm working principle:
-When the door/window is open and the distance between the alarm and the magnetic strip is more than 15mm, the alarm will sound; the alarm will last for 30 minutes, after that, the alarm will be interrupted

Installation instructions:
1. Please clean the surface where you install the alarm and magnetic stripe first, make sure the surface is completely clean and dry before proceeding
2. Please use the supplied double-sided tape to install the alarm and magnetic strip, and make sure it will not fall off
3. When the door/window is closed, make sure the alarm and magnetic stripe are not more than 5mm apart or in contact