Description: 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. [Dual Display Window] Be able to display measured temperature/humidity and set temp/humidity at the same time Specification: Model: STC-3028 Input voltage: AC110~220V± 10%, DC24V, DC12V Measuring temperature range: -20°～+80° Measuring humidity range: 00%RH～+100%RH Accuracy: ±1°, 0.1%RH Relay output contact capacity: 10A/240VAC Shell material: PC + ABS fireproof Sensor length: 1m Installation Opening: Approx. 71 x 29mm / 2.8 x 1.1in Widely used in greenhouse cultivation, hatching and breeding, all kinds of cold storage, home temperature control, pet fish tank Package Includes: 1pc Temperature Humidity Controller