Resideo V-Plex Contact Overhead Door Sensor Rugged Aluminum Housing 4959SN

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V-Plex is the patented polling loop technology that literally defines price and performance on a simple pair of wires. By using two wires instead of four, V-Plex offers significant advantages over home run wiring or the conventional four-wire multiplex-providing economical expansion of peripheral devices and point identification to your central monitoring station. 

Main Features:

  • Rugged aluminum housing and adjustable L bracket type magnet
  • Standard gap: 2" (51mm)
  • 24" (61cm) armored cable
  • Epoxy sealed for protection from moisture and impact
  • Programmed from VISTA keypad