Precision Altimeter and VSI Indicator (3-1/8")
Part no: ALT3
The ALT-3 is a 3 1/8" instrument that contains a precision altimeter and a wide range vertical speed indicator. The altimeter conforms to ANSI standard atmosphere rules from –700 ft up to a maximum of 30,000 ft. The altimeter can display altitude in feet or meters, local pressure can be set in millibars or inches of mercury.