Geiger Engineering develops integrated avionics solutions tailored for electric aircraft, combining motor control, battery management and flight instrumentation into a unified cockpit interface. Their systems include dedicated motor controllers and the Advanced Drive Interface (ADI), which provides engine monitoring, GPS-based flight data, variometer and altimeter functions, data logging and safety monitoring in one device. By integrating propulsion and avionics into a single, plug-and-play system, Geiger enables reliable and user-friendly operation for ultralight and electric-powered aircraft.