The EDM-700 identifies the optimum mixture accurately and automatically. After cruise power has been established, the pilot just presses the function button of the LEANFIND "LF" mode. As the pilot begins to lean the mixture, the EDM-700 is checking all cylinders, using a propriety algorithm looking for the first cylinder to achieve peak EGT. "PEAK EGT" will be displayed when the first cylinder to peak is detected. The display will also then flash the cylinder column and show peak EGT. The pilot has the option to increase (the richness of the mixture) or operate at peak. Leaning faster than the engine can respond will cause the display to flash "2 FAST." The EDM is monitoring all alarms in the background and if the TIT limit is exceeded during the Lean Find process, the TIT column will flash first. Some turbocharged engines do peak TIT before the EGT peaks.