Precision Digital PD516-3-10 Digital Controller LED Display

The Precision Digital PD516-3-10 is a compact digital controller and LED display unit designed for industrial process monitoring and control applications. This model belongs to Precision Digital's legacy Mini-Max series, offering reliable performance in displaying and controlling variables such as temperature, pressure, or flow. It features a bright red 4-digit LED display for clear visibility in various lighting conditions, with configurable input options for thermocouples, RTDs, or process signals like 4-20 mA. Key benefits include its small footprint for panel mounting, user-friendly setup via front-panel adjustments, and robust construction suitable for harsh industrial environments. Advantages over similar products include high accuracy (±0.1% of span), fast response times, and optional relay outputs for alarm or control functions. Drawbacks may include limited modern connectivity (no digital interfaces like RS-485) compared to newer models, and it requires external power. Ideal for applications in manufacturing, HVAC, and process industries where precise monitoring is essential. Based on image analysis, this unit appears used with worn labels and minor cosmetic wear, but no visible damage to critical components. Serial or part number from label: 31631-1-0690. No parent/child assets attached. Estimated market price for used condition: $50-150 USD, based on comparable eBay and surplus equipment listings. For resources, refer to Precision Digital's official site: datasheet available at https://www.predig.com/support/manuals (search for PD516 series); model decoder guide in product manuals summarizes options like input type (3 for thermocouple, 10 for specific range).