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.
- Switch Type - Form A (SPST) Reed
- Contact Reading: 300ma at 30VDC
- Standard Gap: 1-1/4" (32mm)