"Easier quality: timer open, timer stop and timer switch; just plug it in and select the heating/cooling system, then it works, no rotation, LCD with accurate display. Range measuring range: 50 ~ 99 degrees C. Resolution: 0.1 VS;3. Accuracy: 1(-20 ~ 60C).The digital temperature controller can supply all 100-250V, 16A (max.),Connect to the cooling and heating systems at the same time. Differential heating/cooling function can be set separately for cooling and heating for temperature control in case of large changes. Temperature alarm alarm: when the temperature exceeds the temperature limit or when a sensor error occurs, temperature changes do not always have to be taken into account. Compressor delay protection for compressor control and temperature can also be calibrated. Wide device: This thermostat allows you to control the room temperature accurately. Greenhouse, aquarium, coal crystal heater, aquaculture, incubator, room temperature control, home and other places are widely used. "