20 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors W/ Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
$70.88
Description
20 Brown ABS Surface Mount Normally Closed Door Contact Switch..2 Amp Maximum Switch Current.Will make Sense Door Closer at Roughly ¾” or 15mm.This Contact Works with Any Access Control or Burglar Alarm System Available.NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal.
