This thermostat with timer can automatically control the switch of refrigeration and heating equipment, and has the function of intelligent temperature control and intelligent timing. Features: Heating / cooling < p>Cycle duration and countdown countdown Temperature correction Screen lock protection function Memory function: all current settings will be saved after power off Return to factory settings Specification: < p>Voltage: 230VAC 50Hz MAXIMUM LOAD: 16A (2) 3680W.u Temperature range: -40 ℃ ~ 120 ℃ Ready ;temperature control decision: &plusmn; 1% Timing accuracy: 10 minutes MAX Temperature control mode Set the start temperature and stop temperature, when the start temperature &gt; stop temperature, the thermostat output will work in cooling mode, and when the start temperature For example, set Start temperature = 30℃, stop temperature = 35℃, the heater will start to cool. It will heat up when the measured temperature &lt;30℃, and will stop heating when the measured temperature &lt;30℃, and will stop heating when the measured temperature &lt; 35℃.