MC-38 Door & Window Magnetic Sensor Switch Wired MC38 Arduino Raspberry Pi Alarm Anti-Thief [ElectricA]

The reed switch is an electrical switch operated by an applied magnetic field. The switch is open when there is no magnet near to the switch and it will be close when magent is near to the switch.

Features :
Appearance of small, easy to install.
Long period of use, 100% no false positives, not false negatives.
Ming-mounted for installation windows, wooden doors, stainless steel doors, aluminum doors and so many
uses.
Switch output: NC (normally closed with a magnet and a signal line portion is closed together, separate is a
signal off).

Specification :
Material : plastic
Size : 30 x15mm
Line: 28cm
Voltage : 12V DC
Current : 1A
Open distance : 15mm
Switch Type: NC (normal close), circuit is connected when magnet is near to the switch.