It's perfect for various household, institutional & industrial heating and cooling applications.Features:Be able to control temperature and humidity at the same timeBe able to connect with humidifier and dehumidifier equipment at the same timeBe able to connect with refrigeration/ heating and humidifier/dehumidifier equipment at the same timeHeating/Cooling function could be set separately for refrigeration and heating to protect temperature controller from violent change. Same as humidity ControlSupporting Temp and Humidity CalibrationDual Display Window: Be able to display measured temperature/humidity and set temp/humidity at the same timeSpecifications:Display Type: DigitalMaterial: ABS+PCBInput voltage: AC110~220V, DC24V, DC12VMeasuring temperature range: 0C+80CMeasuring humidity range: 1%RH+99%RHAccuracy: 1, 0.1%RHRelay output contact capacity: 10A Direct OutputSensor length: 1mItem Size: 7.5*5.5*3.1cm / 2.95*2.16*1.22inItem Weight: 93g / 3.28ozSet 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 keysSet 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 keystemperature ( 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