This professional temperature controller can be used for vegetable greenhouse, domestic water tanks, refrigerator,industrial chiller, boiler, aquarium, aquaculture and other temperature-controlled systems. Features: A useful temperature controller for controlling temperature intelligently. With large and clear LED dual display for better readability. Wide temperature measuring range -40120(-40248). Cooling and heating control, equipped with power supply cord. Delay protection function. Support brown-out storage(Set parameters is still valid after short circuit. Can be used for vegetable greenhouse, domestic water tanks, aquarium, aquaculture and other temperature-controlledsystems to control temperature. Specifications: Color: Black Material: PC Working Voltage: 90V250V Rated Current: 10A Power Consumption: 3W Power Consumption of Standing by: 0.5W Precision of Temperature Control: 0.1 Resolution: 0.1 Measurement Error: 0.3 Control Range: -40120(-40248) Slewing Range of Temperature: 0.130(adjustable) Working Temperature: -2070(-4158) Working Humidity: 90% RH Non Condensing Temperature sensor: NTC 25 =10K B3435 1% (1.48m Line) Length of Power Line: 1.45m / 57.1in Relay: 10A / AC220V Item Size: 15.5 * 6 * 2.8cm / 6.1 * 2.4 * 1.1in Item Weight: 245.2g / 8.6oz Package Size: 21.5 * 11 * 3.5cm / 8.5 * 4.3 * 1.4in Package Weight: 317g / 11.2oz Package Includes: 1 * Temperature Controller 1 * User Manual