Precision Digital PDS178 Watchdog Temperature Scanning System

Precision Digital PDS178 Watchdog Temperature Scanning System


  • 4-20mA, ±10 V, TC & RTD Inputs
  • 4-digit display
  • Two relays for alarm Signal to PD138
  • NEMA 4X, IP65 Front
  • Sunlight readable display
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SKU: PD-PDS178 Categories: , ,


The Watchdog Temperature Scanning & Alarm System brings together a popular combination of Precision Digital products: the Trident meter, the Minimux II Scanner, and a PDA2821 NEMA 4X enclosure. The scanner provides low-cost automatic switching for multipoint display and alarms. Signal switching is done via reed relays making the Watchdog (as configured) ideal for switching up to eight thermocouple or RTD inputs.
The Watchdog can be used in a variety of temperature monitoring applications. A very common application for this system is to monitor bearing temperatures. Because of the popularity of this combination, Precision Digital can offer this system at a price significantly below what it would cost to buy these components separately.