PSK223N7, controller manages ventilated refrigeration units by controlling compressor and defrost, by electric or hot gas,and evaporator fan management, - Three digital outputs, - 3 1/2 digit display shows decimal point value even at -100°C, - 2 x NTC/PTC inputs, - Easy to understand multicolour icons, - Multifunction digital input, - IP65 front Panel Protection, - Size: 75 x 33 mm, - Panel cut out 71 x 29 mm, - Power supply 230 VAC 50 - 60 Hz, - 8A compressor relay.