Use only the channels you need and save on probe and cable costs. Measures EGT's, CHT's, TIT, Oil Temp, OAT, Carb. Temp and Other, up to 8 channels. Automatically finds the hottest EGT or CHT. Factory set EGT Over-Temp Limits (1650'F). Factory set EGT Under-Temp Limits (1100'F). Factory set CHT Over-Temp Limit (500'F). Differential Limit set from back panel to 95'F or 195'F. Selectable Scan Rate and Number of Channels to be Scanned (6 or 8).