Digital Thermostat PlugMaximum load: 16A/230V, 3680W.. Easy to use, just plug it in and select mode, and set parameters, then it works, no wring, with precise LCD display. Heating & Cooling ModeThe thermostat plug can be set start and stop temperature to control the heating/cooling mode, it will control the heater or cooler to work as setted. Temperature control range:-40~120, temperature control accuracy: 1%. Start temperature > stop temperature, cooling mode starts; start temperature < stop temperature, heating mode starts. Multiple FunctionsThe LCD screen can display temperature control mode and 4 timing modes F01-F04. And with temperature correction function, screen lock protection function, memory function (all current settings are saved after power off). Timing FunctionPlug in thermostat has F01-F04 4 modes. F01 cycle timing control mode, F02 countdown on mode, F03 countdown off mode, and F04 timing switching mode. Timing range: 0-99 hours 59 minutes. Timing accuracy: Up to 10 minutes.