Main function and features: Control modes include refrigeration, defrost, and fan; User menu and administrator menu are separately set for convenient operation and provide sufficient space for advanced management adjustments; Temperature differential control; switch between Celsius and Fahrenheit; temperature display resolution is 0.1; Multi-protection and alarm mode optional; Specifications: Model: ETC-3000 Temperature measurement range: -45.5~120°C Temperature control range: -45.5~110°C Power supply: 220VAC ±10% Compressor relay capacity: 8A/220VAC Fan and defrost relay capacity: 8A/220VAC Input: 2 sensors Sensor length: 2M (including probe) Digital display: Three-digit LED with minus digit and status indicator lights (Set, Refrigeration, Defrost, Fan) Color: Black Material: ABS Package Contents: 1 x Temperature Controller 2 x Sensors 1 x Manual (English) Note: The package includes only the items listed above. Other products are not included. Note: Lighting and different displays may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement error allowance is +/- 1-3cm.