This is an fuel flow indicator gauge as removed from aircraft. The unit is in very good condition, and is used to monitor engine data (Fuel flow) by the flight crew.

The rear cannon plug appears in good order and the seals and data plates are present.

An ideal addition for a variety of flight simulators. Could be converted to functional with the correct knowledge or rewiring the unit but this is at your own risk. Alternatively would make an ideal display piece.