APG offers a wide variety of instruments, both Electro-Mechanical, and Electronic for outright sale and exchanges. These instruments include Flight Instruments like Directional Gyros (DG), Attitude Gyros (ADI), Airspeed (ASI), Altimeters (ALT), Vertical Speed (VSI) and Turn Coordinators/Turn & Slip, and Navigation Instruments like VOR/LOC/GS CDI's, ADF/RMI, TCAS Indicators, etc.,  as well as engine Instruments. RPM, Manifold Pressure,Oil Temp & Pressure, Amp Meters, Clocks...

Click on Manufacturers Links below to see Instrument Choices

Aerosonics

Bendix/King

Davtron

L-3 Avionics Systems

Mid-Continent Instruments

RC Allen

Sandel

Sigma-Tek

United Instruments