Recessed magnetic door sensor

Model No.: MC-SK03W-2 （315MHz）

What is Magnetic Reed Switch？

The reed switch is an electrical switch operated by an applied magnetic field. ... The switch may be actuated by an electromagnetic coil, making a reed relay, or by bringing a permanent magnet near it. When the magnetic field is removed, the contacts in the reed switch return to their original position.

What are magnetic reed switches used for?

A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch.

As shown in the figure above: Use screws to separate and fix the magnet and the magnetic control switch,and the effective distance between the two should not exceed 2cm.When the rolling shutter is illegally pulledup, the detector immediately sends a signal to the alarm host (the host can be placed in the bedroom living room and other places where the alarm is easy to receive, preferably in a relatively hidden place)and the alarm host in the alert state will receive it. After the signal, an ear-piercing alarm sounded immediatelyto scare off the thief, and at the same time, it dialed the pre-stored alarm number to notify the owner to dealwith the alarm quickly.