Check the listing for details. DC20D Generator Controller Module Fit for Diesel Engine or Generator. Condition: New. Listed at 48.99 USD. Description： DC20D is one module used for Diesel Engine or Generator. It is with the functions of Auto Star/Stop,Protection and Alarm indication.DC Power and Running situation is indicated on the front panel. The status of the engine and generator can be checked conveniently because these parameters of Over Frequency,Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure,High Temperature,Low Water Level,Low Oil Level,Charge Failure,Over-time Stop, Emergency Stop Alarm System as well as Low Battery Voltage can be indicated in time. The output connector is connected with traditional relay which can burden more output current. The parameters can also be set by the front face buttons so that it can be used in different kinds of situations. .