It is perfect for various domestic, institutional and industrial heating and cooling applications. Features: 1.Easy control of cooling or heat --- Control Adjust the temperature by setting the temperature setpoint and the different value. Dual heating and cooling function. Automatic overheating alarm. 2.Easy use --- 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 controller digital temperature sensor can measure and control temperature from -55 to 99 degrees Celsius; Make full use of the 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 plastic shell, which protects the component well from damage; Alarm when temperature exceeds temperature limit protects the product for prolonged use. 5.Wide application --- This temperature controller can be used for refrigerator, coffee maker, aquarium, water tank, oven, oven, greenhouse , incubator, hatching, aquaculture, greenhouse cultivation, brewing, etc. Features: 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: Storage temperature: -30- 75 Relative humidity: 20-85% (no condensate)< /p> Sensor length: 1?M (include probe) Front panel size: 75*34.5mm Mounting size: 71*29mm < p> Item size: 85*75*34.5mm/3.3*3.0*1.4in < /p> Package weight: 12V/24V?: 106?g/3.7?oz < p> 110-220V: 120g/4.2oz Package size ?: 85*75*34.5?mm/3.3*3.0*1.4?in Package list? : 1 * STC-3000 digital thermostat 1 * NTC probe