A new advanced design of a laboratory standard. Microprocessor control provides superb linear control of heating and stirring. Speed range: 60-1100 RPM. Temperature range: 25-550°C. Exclusive design monitors and regulates the stirring speed. Extra large knobs with easy to read numbers. A hot top indicator light warns that the top is too hot to touch (>60°C). Includes a socket for an external temperature controller, for temperature stability of samples to ą2°C. Meets UL, CUL, IEC1010 and CE Standards.