The temperature functions are as follows:1. Automatic recognition of working mode:The system automatically recognizes the working mode according to the temperature/stop temperature; temperature stop temperature, cooling mode 'C'; temperature Less than stop temperature, heating mode 'H'; 2. Cooling mode:When the detected temperature is or equal to the starting temperature, the relay is turned on, the red indicator light is on, and the refrigeration equipment starts to work;When the detected temperature is less than or equal to the stop temperature, the relay is turned off, the red indicator light is off, and the refrigeration equipment stops working; 3. Heating mode:When the detected temperature is less than or equal to the starting temperature, the relay is turned on, the red indicator light is on, and the heating equipment starts to work;When the detected temperature ≥ the stop temperature, the relay is turned off, the red indicator light is off, and the heating equipment stops working 4. Temperature correction function OFE (-10.0℃ - 10.0℃):When the system works for a long time, there may be deviations, which can be corrected by this function, the actual temperature = measured temperature + calibration value; The humidity functions are as follows:1. Automatic recognition of working mode:The system automatically recognizes the working mode according to the humidity/stop temperature; humidity stop humidity, dehumidification mode 'd'; humidity Less than stop humidity, humidify mode 'E'; 2. Dehumidification mode:When the detected humidity is or equal to the starting humidity, the relay is turned on, the green indicator light is on, and the dehumidification equipment starts to work; When the detected humidity ≤ stop humidity, the relay is turned off, the green indicator light is off, and the dehumidification equipment stops working; 3. Humidification mode:When the detected humidity is less than or equal to the starting humidity, the relay is turned on, the green indicator light is on, and the humidification equipment starts to work; When the detected humidity ≥ stop humidity, the relay is turned off, the green indicator light is off, and the humidification device stops working 4. Humidity correction function RH (-10.0℃ - 10.0℃):If the system works for a long time, there may be deviations, which can be corrected by this function, the actual humidity = measured humidity + calibration value; Color: As Shown Material: plastic Package Contents: 1 x DTH1 Temperature and Humidity Control Module Only the above package content, other products are not included. Note: Light reflection 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.