Display is designed to require no dedicated panel space. It will mount between the artificial horizon and the directional gyro or HSI and will actually overlay the lower portion of many horizons. A remote processor is mounted in an encoder-size enclosure. A single knob requiring a 3/8" hole is used by the pilot, to control all functions of the NavAlert II.
Display mounts to panel using two #6 screws on 3.17" centers that match the King KI-525A and Kg 258/259 spacing. Display may be mounted using existing screws that mount the HSI or horizon. One small hole is required for three wires to connect to the NavAlert II processor unit.

	The pilot enters the current barometric pressure in inches or hectopascals using the unit's switch. The current encoder altitude corrected by barometric pressure may be displayed in either window and serves as a backup altimeter
	The target altitude may be changed and displayed in the right window. Target altitude can be set in units of 1,000' or 100'. The NavAlert's switch is always "hot" to set in a new target altitude. The previous GPS display will return after the new target has been set
	There is also a visual and audible "Gear" alert as the aircraft descends below 1,000' above the destination airport