DescriptionThis item is a professional digital temperature controller, which is designed with wide range of temperature measurement and control area, and with large and clear LCD display for better readability, can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipments and other temperature-controlled systems.Features- 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.Specifications- Temperature measuring range: -50~99C; -Resolution: 0.1C; -Accuracy: 1C (-50~70C); -Sensor error delay: 1 minute -Power supply: 220V AC10%, 50/60Hz; -Power consumption: less than 3W; -Sensor: NTC sensor (1PC); -Relay capacity: Cool 10A/250VAC;Heat 10A/250VAC; -Ambient temperature: 0~60C; -Storage temperature: -30~75C; -Relative humidity: 20%~85% (No condensate).