Refrigeration, automatic timing defrost, manual defrost, cancel defrost function, temperature correction, delay protection, over-temperature and fault alarm. Compact design, small size, light weight, and strong versatility. Features a well-known brand single-chip microcomputer, optimized design, strong anti-interference capability, stable performance. Multiple functions and wide range of applications. Suitable for temperature control in refrigerators, freezers, cold rooms, and other applications requiring automatic temperature control. Power supply voltage: 220VAC Power consumption: Less than 3W Temperature display range: -40°C to +50°C Measurement accuracy: ±1°C Display resolution: 1°C Sensor: NTC, sheathed lead Compressor output contact capacity: 10A/240VAC Defrost output contact capacity: 10A/240VAC Alarm output: Buzzer + LED flashing Temperature correction range: ±5°C Temperature overrun alarm adjustment range: 0–20°C Defrost interval: 0–99 hours adjustable Defrost duration: 0–99 minutes adjustable Delay time: 3 minutes Color: As shown Material: ABS Package Contents: 1 x Temperature Controller Note: Light reflection and different displays may cause the color of the item to appear slightly different from the actual product. Measurement error allowed is +/- 1–3 cm.