DRD-4, Derailment Detector (Part Number 21425-03)

  • Provides Derailment Detection inside and outside Rail Gauge.
  • Can be used on wooden and concrete ties.
  • All electrical connections are sealed against weather.
  • Built-in test circuit to facilitate monthly testing.
  • Durable housing designed for continuous outdoor use.
  • 4 piece design accommodates a wide variety of rail mounting hardware.
  • Compatible with all wayside defect detection electronic systems.
  • One-Time use design.
  • Patent Pending.

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