Limitless Din-Rail Receiver (WDRR Series)

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The WDRR Series is a reliable din-rail or panel-mountable receiver that is designed to receive a wireless signal from a Limitless™ digital input. The WDRR then communicates the Limitless™ digital input status (ie. switch open or closed) to a PLC (programmable logic controller) or any controller capable of NPN/PNP-type inputs. Honeywell's wireless solutions can save up to 60% compared to traditional wired solutions by eliminating the need for conduit, connectors, and wire while significantly reducing installation and labor costs.

Accommodating up to 14 Limitless™ digital inputs, the WDRR series is for applications requiring multiple wireless inputs. These inputs communicate to a PLC or controller via NPN or PNP-type output, along with RF communications and battery diagnostics. Blue LEDs give visual confirmation that the system is wirelessly connected.


  • Enables presence/absence detection in remote parts of application/machinery, where wiring is costly or not feasible
  • Ability to reconfigure and network multiple inputs, or point-to-point with personalized addresses which allows for adding, subtracting or relocating Limitless inputs easily
  • Reduced installation/maintenance costs with no wiring to Limiteless inputs, conduit, strain relief, clips, connector, connection boxes, etc.
  • Eliminates issues with wire connection integrity on moving equipment
  • LEDs indicate change of status, low battery, RF signal loss, pairing function & diagnostic functions
  • Communication security per the IEEE 802.15.4 standard


  • Valve position
  • Crane boom/jib/skew position
  • Lifts
  • Material handling
  • Presses
  • Construction/Ag machines
  • Conveyors
  • Remote or temporary equipment