Reed Switch Kit


The Honeywell 7939WG-WH can be connected to input and ground to detect door opening.  The Reed Switch is a white, surface mount magnetic contact designed for Form A SPST (normally closed contact) wired systems. The two-screw terminal system makes for easy zone wiring.
The magnet and contact can be installed on any door or window frame. A 1 1/4" gap is observed, so be sure to mount the unit accordingly for optimal performance. The device is flush mountable with screws or adhesive strips. The 7939WG-WH comes with screw caps.
Technical Specifications:

  • Switch Type - Form A (SPST) Reed
  • Contact Reading: 300ma at 30VDC
  • Standard Gap: 1-1/4" (32mm) 
SKU: BT-1510
*works with:   (BT-1624) BluTrac TC PCB Board only
                           (BT-1620) BluTrac TC
                           (BT-1621) BluTrac TC-A1
                           (BT-1623) BluTrac TC-A3