Features: Measure and control temperature; control defros-ting timely; delayed protect; alarm in case of exceeding temperature; water-proof panel. Technical parameter: Power voltage:220V AV±10% 50∽60Hz Power consumption:<5W Measuring and regulation range: -40°C∽+50°C Distinguishing rate: 0.1°C Measuring precise: ±1°C Regulation output: 1 SPDT 10A/240VAC 1 SPST 20A/240VAC Alarm rang for out of temperature:0°C∽20°C Temperature calibration:-5°C∽+5°C Delay at start up:3min Defrost cycle: 0∽99h Defrost time: 0∽99 min Product size:186.5?35.5