Very efficient heating saving time and energy. Chemically resistant ceramic top. Hot warning light for user safety. Using an ultra-efficient; infra-red heater of just 900 W power this hotplate will boil 1 litre of water over 30 % faster than a conventional ceramic hotplate of 1200 W. Ideal for heating large volumes of liquid. Additional functions of CR302: Stirrer speed range 100 to 1500. Ideal for heating and stirring large volumes of liquid; particularly microbiological media. With fitting for retort rod and supplied with 2 x 25 mm stirrer bar followers. With BioCote; silver-based; antimicrobial protection.