UMA 3-1/8 Airspeed Indicator 40-200 MPH

These highly accurate Airspeed Indicators use a diaphragm to sense the difference between the pitot pressure and static pressure. Standard dial markings are black and white. NON TSO Approved. Intended for use in experimental aircraft only. Note: An inverter is required for the Internal Lighting Option (P/N 10-02083 UMA 14V LIGHT INVERTER)