Features: Control temperature by setting the temperature set value and differential value. This mini temperature controller is a reliable and convenient multifunction device for temperature control in farms, greenhouses, and refrigeration units. Touch switch operation with 0.1°C accuracy for precise temperature control. Temperature stability is essential for the health and safety of your plants and animals; this controller helps maintain optimal environmental conditions. Measures and controls temperature from -55°C to 120°C. Includes automatic over-temperature alarm. Supports dual heating and cooling functions. Specifications: Model: STC-3000 Type (Optional): 220V 10A, 220V 30A Working Principle: Electronic thermostat, digital thermostat Power: 220V 10A, 30A / AC220V Thermostat Temperature Range: -55°C to 120°C Dimensions: 85 x 35 x 65mm / 3.34 x 1.38 x 2.56 inches Weight: 121g, 136g Package Included: 1 x Temperature Controller Note: This product displays temperature in Celsius only. Fahrenheit is not available, despite any labeling that may suggest otherwise.