<p>[Temperature Control Function]: Temperature controller range is -40\u2103~120\u2103 (-40\u00B0F~248\u00B0F), set start and stop temperature to control heating or cooling equipment, timer thermostat supports 15A\/120V 1800W load. (Start temperature Stop temperature, cooling; Start temperature Less than Stop temperature, heating). This thermostat plug also supports temperature calibration.</p> <p>[Backlit LCD Display]: The newly upgraded 2.24-inch LCD display is different from most other products on the market. It has backlight function. The clear LCD display and power indicator light let you see the controller's status even in complete darkness.</p> <p>[Multiple functions]: 1.7M \/ 5.6FT 10K temperature sensor probe; heating\/cooling function; F01-F04 timing function; -9.9~9.9\u2103 temperature calibration function; memory function; reset function; screen lock protection (power off) and save all current settings).</p> <p>[Mode Selection]: 5 modes are available, F01 cycle timing control mode, F02 countdown on mode, F03 countdown off mode, F04 timing switching mode. Timing range: 0-99 hours and 59 minutes. Timing accuracy: up to 10 minutes. Celsius and Fahrenheit can be converted. You simply the \</p>