NC Wired Metal Roller Shutter Door Magnetic Contact Reed Switch Close to Contact

Wired Rolling Metal Door Sensor- Surface installation:
Detecting door gap by opening, Be used to detect door if it is opened or moved. It is widely used for monitoring and security system, with high reliability, small size, easy installation and strong flexibility.
 
Specification
Dimension: 106*38*10mm (switch)/106*16*16mm(magnet)
Housing: Metal(Alloy-Al ),grey
Gap: 50-70mm/60-70mm available
Output: NC