Product Description Suitable for heating and cooling applications in various homes, institutions, and industrial settings. Features: Simultaneous temperature and humidity control Simultaneous connection to humidifiers and dehumidifiers Simultaneous connection to cooling/heating and humidification/dehumidification equipment Cooling and heating functions can be set separately to protect the temperature controller from drastic changes. Similar to humidity control Supports temperature and humidity calibration 【Dual display window】Can simultaneously display measured temperature/humidity and set temperature/humidity Specifications: Display type: Digital Material: ABS+PCB Input voltage: AC110~220V, DC24V, DC12V Measurement temperature range: 0℃+80℃ Measurement humidity range: 1%RH+99%RH Accuracy: 1.001%RH Relay output contact capacity: 10A direct output Sensor length: 1 meter Product dimensions: 7.5*5.5*3.1 cm / 2.95*2.16*1.22 inches Product weight: 93 grams / 3.28 ounces Setting the start temperature (humidity): Press the up key once to display the initial temperature (humidity): Press and hold the up key for about 3 seconds, then use the up and down keys to set the desired temperature (humidity). Setting Stop Temperature (Humidity): Press the down arrow key once to display the stop temperature (humidity). Press and hold the down arrow key for about 3 seconds until the stop temperature (humidity) value flashes. Use the up and down arrow keys to set the desired temperature (humidity). Temperature (Humidity) Calibration: Press and hold the up and down arrow keys simultaneously. Product Reset: Press and hold down arrow keys 1 and 2 simultaneously for 3 seconds. Package Contents: 1 * Temperature and Humidity Controller