It is perfect for various domestic, institutional and industrial heating and cooling applications. Features: 1.Easy Cooling or Heat Control --- Control the temperature by setting the temperature setpoint and the different value. Dual heating and cooling function. Automatic overheat alarm. 2.Easy Operation --- With large and clear LED display for better readability, simple control panel for easy operation, programmable controller, can choose heating or cooling control. 3.Precision Control --- This digital temperature controller can measure and control the temperature from -55 to 99 degrees Celsius; Make full use of microcomputer and NTC probe to make this controller have high accuracy up to 0.1 Celsius. 4.Safe and Reliable---High quality ABS anti-flame retardant plastic shell, which well protects the component from damage; The alarm when the temperature exceeds the temperature limit protects the product for a long time use. 5.Wide Application---This temperature controller can be used for refrigerator, coffee pot, aquarium, water tank, oven, furnace, greenhouse, incubator, hatchery, aquaculture, greenhouse cultivation, brewing, etc. Specifications: Material: PCB board + plastic shell Power supply: DC 12V/DC 24V/AC 110-220V (optional) Color: gray and orange Temperature measuring range: -50°~99° Accuracy: ±1°(50°-70°) Resolution: 0.1° Power consumption: <3W Sensor: NTC (IPC) sensor Sensor error delay: 1 minute Relay contact capacity: Cool (10A/250VAC); Heat (10A/250VAC) Ambient Temperature: 0°- 60° Storage Temperature: -30°- 75° Relative Humidity: 20-85% (no condensation) Sensor Length: 1M (include probe) Front Panel Size: 75*34.5mm Mounting Size: 71*29mm Item Size: 85*75*34.5mm/3.3*3.0*1.4in Package Weight: 12V/24V: 106g/3.7oz 110-220V: 120g/4.2oz Package Size: 85*75*34.5mm/3.3*3.0*1.4in Package List: 1 * STC-3000 Digital Thermostat 1 * NTC Probe