Product Catalog

Watchdog VIPrm

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Watchdog VIPrm specifically designed for basic rectifier monitoring applications.

Using field-proven Watchdog lightning surge-resistant circuitry, the Watchdog VIPrm is the best choice for any standard CP rectifier monitoring application.





The Watchdog VIPrm is specifically designed for most rectifier monitoring applications. Features in-clude pre-configured, dedicated analog measurement channels for volts, current, and pipe to soil. Unit is equipped with an AC Probe to detect and monitor the rectifier input power. An additional dry contact digital channel can be used for momentary alarm monitoring (door alarm for intrusion detection for ex-ample), or for status monitoring (valve position, etc.).

Units come factory configured as Ch 1 – volts, Ch 2 – amps, Ch 3– pipe to soil potential (required refer-ence cell not included). Dedicated channels and the colorcoded wire harness greatly simplify installa-tion at any rectifier location. Compact, NEMA 4x enclosure may be mounted external to the rectifier, or mounted inside the rectifier for additional security. An optional, lockable, external enclosure is available for use where device security is of great concern.


  • Specifically designed for basic
    rectifier monitoring applications
  • Factory configured to monitor Rectifier Voltage, Current, and
    Pipe to Soil Potential
  • Additional inputs for:
      • Digital dry contact input (alarm or status monitoring)
      • Rectifier input power monitoring


  • Cost-effective, easy to use, CP rectifier moni-toring system.
  • Alarm and return to normal notifications via e-mail and/or text
  • Lightning/power surge-resistant circuitry
  • Global communication to Pipeline Watchdog web monitor system via cellular or satellite telemetry
  • Intuitive, “point & click” web interface
  • Firmware reprogrammable over the air (cellular units only)
  • LCD display for on-site information
  • Power via external 10-35 VDC or 12-25 VAC
  • Rechargeable NiCd backup battery for alarm notification in the event of a power failure
  • Inputs– 3 analog, 1 digital and 1 AC detect digital input (using included AC Probe)