Description: Independent Dual-way temperature controller. Heating or cooling control.Red and blue LED display. All parameters setting can be saved after short circuit. Can be used for domestic freezer, water tanks, refrigerator, industrial chiller, steamer, industrial equipment and other temperature-controlled system. 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. Specification: Temperature measuring range: -55-120 Celsius Accuracy: 0.1 Celsius Sensor error delay: 1 minute Power supply: DC 12V DC 24V AC 110-220V Power consumption:<3w Sensor: NTC sensor Relay contact capacity: Cool (10A/240VAC); Heat (10A/240VAC) Ambient temperature: 0-60 Celsius Storage temperature: -30-75 Celsius Product size: 75x85x35(mm) / 2.95x3.34x1.37inch Sensor length: 1 meter (include the probe) Package Includes: 1 Piece Dual Digital Temperature Controller Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!