Simplified quality: open timing, stop timing and switch timing; Just plug in and select heating/cooling system, then it works, no rotation, LCD with accurate reading. Measuring range: 50~99 degrees C. Resolution: 0.1 SV; 3. Accuracy: 1C (-20~60C). The digital temperature controller can connect all 100-250V, 16A (max.),to cooling and heating systems at the same time. The heating/cooling differential function can be set separately for cooling and heating to control the temperature in case of significant changes.Temperature alarm alarm: when the temperature exceeds the temperature limit or when a sensor error occurs, the temperature changes do not always need to be taken into account. Compressor time delay protection for compressor control and temperature are also calibratable.Wide Feature: With this thermostat you can control room temperature precisely. Greenhouse, fish tank, carbon crystal heater, aquaculture, incubator, room temperature control, home and other places are widely used.