Specification Temperature measuring range: -50~99 Celsius Accuracy: 0.1 Celsius Sensor error delay: 1 minute Power supply: DC 12V, DC 24V, 110V/220V AC+10%, 50/60Hz Power consumption: <3w Sensor: NTC sensor(IPC) Relay contact capacity: Cool (10A/220VAC); Heat (10A/220VAC) Ambient temperature: 0-60 Celsius Storage temperature: -30-75 Celsius Relative humidity: 20-85%(No condensate) Features 100% brand new and high qualit Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; Refrigerating control output delay protection; Alarm when temperature exceeds temperature limit or when sensor error. Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% Package Included 1* Digital Temperature Controller