*ON/OFF Control *Input specification ? Basic specification:NTC(Thermistor), Option:RTD(DIN Pt100?) *Indication range ? NTC Sensor type : -40.0 ~99.9°C(40~212°F), RTD Sensor type : -99.9 ~99.9°C(-148~212°F) *Includes various delay function. Auto/Manual Defrost selection function, Start-up delay of compressor, Re-operation delay, Minimum ON time, Delay of defrost-end, Operation delay of evaporation-fan *Input correction function *It is available to set operation period for protecting compressor in error.