To prevent overheating and provide protection to the heating elements, the CookTek MWDG3500 drop-in induction wok unit has an integral cooling fan and automatic shut-off feature. To cook a range of foods, it has 20 power levels, and it detects when a pan is present automatically to transmit energy instantly to the pan. Ensuring the unit is running at peak efficiency at all times, it has a self-diagnostic feature that monitors the components for vital issues.The CookTek MWDG3500 commercial induction wok unit is controlled with a knob and LED display screen. Using a heavy-gauge Litz wire, it operates with high-quality electronics. To provide corrosion-resistance, the top of the unit is made of stainless steel, and the aluminum housing adds additional durability.(MWDG3500) Heritage Induction Wok Range, drop-in, single hob, recessed glass-ceramic wok bowl designed, control knob, microprocessor with (20) power cook settings & auto shut-off, self-diagnostics, automatic pan detection, LED display, integral cooling fan, stainless steel top, aluminum housing, 200-240v/50/60/1-ph, 3500 watts, 15.0 amps, 6 ft. cord, cETLus, NSF, CE, Made in USA*Image may not depict product color, inclusions or accessories.Cord AttachedThis product includes a cord and plug Important Prop 65 information for California residents.