1. Refrigeration Defrost Fan Controller This electronic thermostat is designed for refrigeration and defrost management in medium and low temperature cold storages, freezers, and operating consoles. It offers optional refrigeration and fan operation modes, a defrost function, dual sensors, and alarms for temperature overrange and sensor failure. 2. Dual Control Defrost The thermostat provides time and temperature dual control for defrosting, enabling efficient and effective defrost management. User parameters and administrator parameters can be set separately for easy . Upper and lower limits of parameter values can be set by the user. 3. Multiple Management Methods The controller supports multiple defrost and fan management methods, providing flexibility and convenience in operation. The dripping time for defrost can be adjusted for performance. 4. Practical use scenarios Scenario 1: In a mediumtemperature cold storage or refrigerated warehouse you need reliable defrost scheduling with both time and temperature control to maintain product quality and reduce frost buildup. Scenario 2: In a commercial freezer or display cabinet, use the optional fan control and defrost modes to balance energy efficiency with consistent temperature, while relying on dual sensors and alarms to detect faults. Scenario 3: In a cold chain processing room or operating console, configure separate user and administrator parameters to simplify maintenance and ensure proper defrost timing and drip settings.