These MB800 series digital clocks are designed for Beechcraft King Air aircraft to mount into the yoke and built to keep working in the toughest conditions. Davtron's two-button design is designed for easy operation to keep pilots focused on flying. These clocks display universal time, local time, and elapsed time: advanced models add a flight time channel to use for fuel timing. The sunlight readable display is available in either LCD or incandescent.This MB800 digital clock (EDMO# B80028/NSB) operates on 11–30V with 28V lighting and is has a black color.