Designed to retrofit standard door strikes, these kits provide latch and/or deadbolt status. Such as, door closed and latched and/or door closed and bolted. http://www.sdcsecurity.com/Latch-and-Deadbolt-Monitoring-Strikes.htm#sthash.OOHBR9Jx.dpuf

DHMS-12 Latch Monitors

DHMS-14 Latch Monitors
- Latch status & request-to-exit signalling for mechanical and electrified
cylindrical lock or Tubular style deadbolts - 5 amps @ 12/24 VDC
- Features:
- – Solid stainless steel actuators installed in heavy gauge strike back box
- – Unobtrusive, vandal resistant actuators are recessed to inhibit tampering
- – Field adjustable for latch & bolt length
- – SPDT contact standard, DPDT contact available by special order
- – All wiring maintained in frame, eliminating the need for power transfer
devices and wires in the door, maintaining fire door integrity
- 1 year warranty
DHMS-14 Specification Sheet