1、Be able to control temperature and humidity at the same time. Be able to connect with humidifier and dehumidifier equipment at the same time. 2、Be able to connect with refrigeration/ heating and humidifier/dehumidifier equipment at the same time. 3、Heating/Cooling function could be set separately for refrigeration and heating to protect temperature controller from violent change. Same as humidity Control. 4、Supporting Temp and Humidity Calibration. 5、Dual Display Window. Be able to display measured temperature/humidity and set temp/humidity at the same time. 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 1 * Temperature Humidity Controller