The Digital Temperature Thermostat Timer is an on/off thermostat designed to continuously display the current temperature and time. The temperature on/off cycle can be set between 0.1°C and 5°C, and upper and lower temperature limits can be selected. It includes a separate timer circuit that can be used to turn heaters, lights, fans, or sprayers on and off every 24 hours. This item retains its settings in the event of a power outage. Maximum 600 watts.