10 pcs Recessed Brown Door Contacts NC Security Alarm Door Window Sensors W/Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
- Overhead Door Contact for Security Systems.
- Includes Switch, Magnet, Z-Bracket Magnet and Mounting Screws.
- 18 in. Armored Cable, 36 in. #22 AWG Wire Leads.
- Closed Circuit with Magnet Present, 3 in. Gap.