Product Description
The Sigma Tek True Airspeed Indicator (EA5174-PTL) is a differential pressure indicator.. These units measure the difference between static and total pressure produced by ram air from the pitot. The indicated airspeed can be corrected for changes in altitude by turning the knob to align the outside air temperature with the altitude. This True Airspeed also includes a movable airspeed scale to show the actual, or true, airspeed. Designed to meet the requirements of FAA TSO-C2b for a Type II instrument.
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