Features Versatile Application: Regulate temperature for cold storage, freezer medical storage, and fruit and vegetable storage in both Celsius and Fahrenheit, catering to diverse storage needs. Stable Design: Constructed with a flame-retardant ABS shell, waterproof, and equipped with an LED digital display for easy reading and eye protection, ensuring long-lasting and reliable performance. Adaptive Functionality: Microcomputer-based temperature controller supporting cooling and heating conversion, suitable for a variety of temperature control and frost temperature control scenarios. Customizable Defrosting: Offers multiple defrosting fan management modes, allowing precise control over freezer temperature and defrosting drip time to meet various usage requirements. Control: Thermostat function with temperature correction, sensor fault alarm, and the ability to limit the temperature set value range, providing accurate and reliable temperature management. Specification: Item Type: Freezer Temperature Controller Working Power Supply: AC230V 50/60HZ Relay(refrigeration) Capacity: 10A 220VAC Operating Temperature: -5℃~55℃ Relative Humidity: 10%~90% (no condensation) Storage Temperature: -30℃~85℃ Sensor: NTC sensor (resistance 10K) Sensor Fault Delay: 1 Minute Accuracy: ±1℃ Power Consumption: between3W Temperature Control Range: NTC Probe: -50~110℃ PCT Probe: -55~140℃ Display Resolution: 1℃/0.1℃ Package List: 1 x Temperature Controller 1 x Sensor 1 x User Manual Package List 1 x Temperature Controller 1 x Sensor 1 x User Manual