This controller is suitable for temperature control of medium and low temperature cold storage. It features temperature measurement, display, and control functions. Includes calibration, forced defrost, over-temperature alarm, and sensor failure alarm. One-key restore to factory default settings and parameter preset options. Features a touch button design with button lock function. Single sensor input: cabinet temperature sensor (Pb1). Dual control output: refrigeration and defrost. Technical parameters: - Temperature measurement range: -40 to 99°C - Temperature control range: -40 to 85°C - Accuracy: ±1°C (-30 to 50°C); ±2°C (other ranges) - Resolution: 0.1°C - Power consumption: Less than 5W - Output capacity: Refrigeration: 10A/220VAC; Defrost: 10A/220VAC; Single buzzer alarm output - Power supply: 220VAC ±10%, 50/60Hz - Ambient temperature: -10 to 60°C - Probe type: NTC (10K/25°C, B value 3435K) - Material: Plastic - Color: Black Package contents: 1 x Thermostat (Other products not included) Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3cm.