Deep Sea Electronics PLC The Model 701 is a Manual Engine Control Module 
designed to control the engine via a key switch and pushbuttons on the front panel. The module is used to start and stop the engine and indicate fault conditions, automatically shutting down the engine and indicating the engine failure by LED, giving true, first-up fault annunciation.

Deep Sea Electronics PLC The Model 702 is a Manual Engine Control Module 

designed to control the engine via a key switch and pushbuttons on the front panel. The module is used to start and stop the engine and indicate fault conditions, automatically shutting down the engine and indicating the engine failure by LED, giving true, first-up fault annunciation.