Control ELIWELL ID 974  Electronic controller for refrigeration units with three relays for  compressor, defrost and evaporator fans control. Quick and easy rack instalation.Inputs:   two inputs NTC or PTCOutputs:   two outputs 8A or 15ARange:   -50 ~ 140° CSize:   front 74x32 mm, depth 60 mmPower:   230V or 12V AC/ DC