Instruction: Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; refrigerating control output delay protection; Alarm when temperature exceeds temperature limit or when sensor error. Specification and Size: Front panel size: 75(L)x34.5(w)(mm) Mounting size: 71(L)*29(W)(mm) Product size: 75(L)x34.5(W)x85(D)(mm) sensor length: Im (include the probe) Technical Parameters: Temperature measuring range: 50°C~99°C Resolution: 0.1°C Accuracy: +1°C(-50°C~70°C) sensor error delay: l minute Power supply: AC 110V-220V, 50/60Hz Power consumption: