The EDM 830 with fuel flow and a full GPS interface, allows powerful user programming flexibility. Please review the reliable EDM830 specs and video. Designed to be used both vertical or horizontally, the rear processor is offset to give almost unlimited install choices, and a long list of user options. The Engine Data Management 830 system is the most advanced and accurate piston engine-monitoring instrument on the market. TSO’d for quality, the EDM 830 is not just another black box along for the ride. It is a Flight Engineer … a Maintenance Manager … a Backup Instrument. For the price there is nothing that gets close to it. You can alost think of the EDM 830 as your personal flight engineer. It’s always there, working in the background, constantly watching over your engine while you concentrate on flying the aircraft. You can make an entire flight without ever pushing a button, if you so choose. Yet your EDM will be monitoring your engine parameters three times a second and will warn you instantly if any parameter exceeds the programmed limit.