GB Specifications: Be able to control temperature and humidity 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 Features: Power Supply: 110-220VAC 10%, 50/60Hz or DC 12V Temperature Control Range: 0C~+110C Humidity Control Range: 0%RH~99.9%RH Accuracy: +/-1C 0.1% RH Relay Capacity: 10A/240V AC Integrated sensor: Sense temperature and humidity Heating: Start temperatureStop temperature Humidification: Start humidityStop humidity Set the start or stop temperature: Long press UP 1 button for 3 seconds, display flashes, press UP 1 or DOWN 1 button to set the start temperature (20C default) Long press DOWN 1 button for 3 seconds the display flashes, press UP 1 or DOWN 1button to set the stop temperature (30C default) Set the start or stop humidity: Long press UP 2 button for 3 seconds, display flashes, press UP 2 or DOWN 2 button to set the start humidity (40%RH default) Long press DOWN 2 button for 3 seconds, the display flashes, press UP 2 or DOWN 2 button to set the stop humidity (60%RH default) Reset: Long press DOWN 1 and DOWN 2 button for 3 seconds to reset the controller. Calibration method: Long press UP 1 and DOWN 1 to calibrate the temperature, -10~10 C Long press UP 2 and DOWN 2 to calibrate the humidity Package Content: 1 x STC-3028 temperature humidity controller 1 x temperature humidity sensor