It could measure,display,control temperature,with the function of temp. calibration,forced defrost,over temp. alarm and sensor failure alarm,one key recovery of factory default value,parameters preset and one key recovery; This controller is suitable for temperature control of the middle and low temperature cold storage; Two way sensor inputs:cabinet temperature sensor and defrost temperature sensor. It adopts touch key design with the key lock function; Three way control output:Refrigeration,defrost and fan.