Check the listing for details. Digital Thermostat Temperature Humidity Control STC-3028 Controller Meter DC 12V. Condition: New. Listed at 18.68 USD. Feature: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 CalibrationDual Display Window,Be able to display measured temperature/humidity and set temp/humidity at the same timeSpecification:Model: STC-3028Input voltage: DC12VMeasuring temperature range: -50°～+110°Measuring humidity range: 00%RH～+100%RHAccuracy: ±1°, 0.1%RHShell material: PC + ABS fireproofSensor length: 1m Set startup temperature(humidity):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(humidity):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. Package includes:1 X Temperature Humidity Controller