It's perfect for various household, institutional & industrial heating and cooling applications. Features: Be able to control temperature and humidity at the same time Be able to connect with humidifier and dehumidifier equipment at the same time Be able to connect with refrigeration/ heating and humidifier/dehumidifier equipment at the same time Heating/Cooling function could be set separately for refrigeration and heating to protect temperature controller from violent change. Same as humidity Control Supporting Temp and Humidity Calibration [Dual Display Window] Be able to display measured temperature/humidity and set temp/humidity at the same time Specifications: Display Type: Digital Material: ABS+PCB Input voltage: AC110~220V, DC24V, DC12V Measuring temperature range: 0°C+80°C Measuring humidity range: 1%RH+99%RH Accuracy: ±1°, 0.1%RH Relay output contact capacity: 10A Direct Output Sensor length: 1m Item Size: 7.5*5.5*3.1cm / 2.95*2.16*1.22in Item Weight: 93g / 3.28oz Set startup temperature( hunidity): Press the "up" button once to display the starting temperature(humidity). Long press the "up" button for about 3 seconds,The required temperature(humidity) can be set by the up and down keys Set the stop temperature( hunidity): Press the "down"button once to display the stop temperature(humidity). Long press the button for about 3 seconds and the stop temperature(humidity) number flashes. The required temperature(humidity) can be set by the up and down keys temperature ( hunidity) correction: Press "up" and "down button at the same time. How to reset the product: Press "down 1" and "down 2" for 3 seconds. Package List: 1 * Temperature Humidity Controller