This Digital Temperature Controller can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipment and other temperature control applications, easy to operate and use. Features: Mini temperature controller with large and clear LED-display for better readability. Support switch modes between cooling mode and heating mode. Control temperature by setting the temperature setting value and the difference value. Support temperature calibration and refrigerating control output delay protection. Support alarm function when temperature exceeds temperature limit or when sensor error, ensuring safety. Wide temperature measuring range from -50 to 99. Can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipment and other temperature control applications. Specifications: Model: STC-1000 Power Supply: 12V, 24V, 110-220VAC (Optional) Temperature Measuring Range: -50~99 Resolution: 0.1 Accuracy: 1 (-50~70) Sensor Error Delay: 1 Minute Power consumption: