The DMS-20PC-1-RS-C is a ±2V 3-1/2 Digit LED display subminiature Digital Panel Voltmeter combines a precision A/D converter, a factory-trimmed, highly stable, voltage reference and a large and easy-to-read LED display. This meter is fully self-contained and fully functional. Its subminiature, epoxy-encapsulated case incorporates built-in color filters and bezels, is moisture and vibration proof and function well in the harshest environments. A display enable function permits the display to be disabled for power-down operation. Standard red LED model offers an optional display hold function.