ESE ES-992U Wall Mount Digital Clock, 2.3/1 Inch Display

The ES-992U is a stand-alone wall clock that splits its digit heights, 2.3 inch amber LEDs for hours and minutes with a smaller 1 inch LED seconds readout beside them, so it stays legible from about 70 feet while still showing running seconds, something a same-height four-digit clock cannot do. AC line frequency serves as the standard time reference, with an optional quartz crystal timebase available.

Time-set and date-display controls are on top of the case, it runs on 110-120 VAC standard, and a 24-hour version, the ES-994U, is offered for facilities that run on military time.