The DMS-20PC-2-RS-C is a 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 (0.37 inch/9.4mm). The meter is fully self-contained and fully functional. Their subminiature epoxy-encapsulated case incorporate built-in color filters and bezels, is moisture- and vibration-proof and function well in the harshest environments. Their 12-pin dual-in-line configuration offers component-like, plug-in convenience and maximum versatility. A display enable function permits the display to be disabled for power-down operation. This panel voltmeter has a display test function. Standard red LED model offer an optional display hold function.