MC-4
Manufacturer: SDC
Product Description: SDC MC-4 Magnetic Switch
Ideal for door status monitoring, the SDC MC-4 is easily installed in hollow metal and aluminum doors and frames.
Contact: SPDT, 50mA @ 30VDC Door/Frame Preparation: 0.75" diameter x 1" deep (19.1 x 25.4mm) Gap: 0.5" (12.7mm)