The new EDM-900 is the latest graphic engine analyzer from J.P. Instruments and takes the best from their EDM-800 and adds total engine display monitoring. Each individual engine display has a variable scale and alarm limit to fit your particular airplane. As with the popular EDM-700 and EDM-800, the EDM-900 has internal memory that records all engine parameters that can can be recalled and displayed on your computer to keep track of the health of your engine. Plus warnings for shock cooling and excess temperature differentials. Plus optional Fuel Pressure, Fuel Quantity, and Turbine Inlet Temperature