5pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch Brown PVC Sheets Not for hammer drill

Not for hammer drill

has high elasticity to restore memory effect

It is a contactless exit switch adopts infrared induction technology

Carbon motor brushes are one of the most commonly replaced power tool components

network and other rackmount equipment securely into your server rack or cabinet

5pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch Brown PVC Sheets Not for hammer drillDescription: 1. NC means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). When make order,pls check carefully! 2. These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system. 3. Work as an anti theft alarm, perfect for metal door and window.