The 655 is a multi-functioning gauge combining readouts for: outside air temperature ºC/ºF, pressure altitude, density altitude, and aircraft voltage. The digital probe with 12 ft cabling sends an accurate reading to the panel mount, super bright, sunlight readable display.The 655-2-NVG is 2-1/4"" standard clock mount or front mount with temperature probe and NVG green A lighting.
