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.The 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 CalibrationModel: STC-3028Measuring temperature range: -20degree~+80degreeMeasuring humidity range: 00%RH~+100%RHAccuracy: +/-1, 01%RHRelay output contact capacity: 10A/240VACSensor length: 1mVoltage:DC12Vcolour:blackMaterial:plasticsize:855*75*343mmPackage Contents:1 * thermostat1 * temperature probeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.