Modular unit for monitoring of operating conditions of turbo-prop engines AI450-S, AI451-S2 a BE2/BE2+ and their fuel and oil units. It is based on the identical architecture, it undertakes the identical development process and contains majority of modules, which are identical with ECU0 modules. The unit ensures operating data records and collection, communication with board to signal table and with the system of collection and saving data to the engine. The signals coming into EMM are not important for engine control. These signals do not come into ECU.