The product features temperature and humidity control functions. Temperature functions: 1. Automatic mode detection: The system automatically identifies the operating mode based on start and stop temperatures. If start temperature is higher than stop temperature, it enters cooling mode (C). If start temperature is lower than stop temperature, it enters heating mode (H). 2. Cooling mode: When the detected temperature rises above the start temperature, the relay activates, the red indicator light turns on, and the cooling equipment starts. When the temperature drops to the stop temperature, the relay turns off, the red light turns off, and the cooling equipment stops. 3. Heating mode: When the detected temperature falls below the start temperature, the relay activates, the red indicator light turns on, and the heating equipment starts. When the temperature reaches the stop temperature, the relay turns off, the red light turns off, and the heating equipment stops. 4. Temperature correction (OFE: -10.0 to 10.0): To correct measurement deviations after prolonged use, the actual temperature is calculated as: measured temperature + correction value. How to set start/stop temperature: - From the running interface, press and hold the "TM+" button for more than 3 seconds to enter the start temperature setting. Adjust the value using the TM+ and TM- buttons. After setting, wait 6 seconds for the system to save and exit automatically. - From the running interface, press and hold the "TM-" button for more than 3 seconds to enter the stop temperature setting. Adjust the value using the TM+ and TM- buttons. After setting, wait 6 seconds for the system to save and exit automatically. Humidity functions: 1. Automatic mode detection: The system automatically identifies the operating mode based on start and stop humidity levels. If start humidity is higher than stop humidity, it enters dehumidification mode (d). If start humidity is lower than stop humidity, it enters humidification mode (E). 2. Dehumidification mode: When the detected humidity exceeds the start humidity, the relay activates, the green indicator light turns on, and the dehumidification equipment starts. When the humidity drops to the stop humidity, the relay turns off, the green light turns off, and the equipment stops. 3. Humidification mode: When the detected humidity falls below the start humidity, the relay activates, the green indicator light turns on, and the humidification equipment starts. When the humidity reaches the stop humidity, the relay turns off, the green light turns off, and the equipment stops. 4. Humidity correction (RH: -10.0 to 10.0): To correct measurement deviations after prolonged use, the actual humidity is calculated as: measured humidity + correction value. How to set start/stop humidity: - From the running interface, press and hold the "RH+" button for more than 3 seconds to enter the start humidity setting. Adjust the value using the RH+ and RH- buttons. After setting, wait 6 seconds for the system to save and exit automatically. - From the running interface, press and hold the "RH-" button for more than 3 seconds to enter the stop humidity setting. Adjust the value using the RH+ and RH- buttons. After setting, wait 6 seconds for the system to save and exit automatically.