Stainless steel frame. Athermic thermoset plastic knobs with useful screen printed edges. Heating obtained through cast iron round electric plates. Heating elements fixed on the plate bottom, embedded in a layer of insulating material. Each hotplate is provided with a selector, which enables the variation of the heat output from maximum to minimum in seven positions. Safety ensured by a temperature limit-switch situated inside the hotplate. AISI 304 moulded work surface presenting a reverse drawing for perfect lodging the electric plates, easy cleaning and avoiding liquid damaging electric parts. Stainless steel AISI 304 front panel.