Hotplate & Magnetic Stirrer Isg. This robust ISG Hotplate and Magnetic Stirrer is constructed of stainless steel with ceramic coating to resist corrosion and has separate safety circuit which will automatically stop heating when the temperature reaches 350 degrees centigrade. The variable speed motor is designed to stay at constant speed, even during change in load. High magnetic adhesion ensures that the stirrer bar remains stable at the bottom of the container. The ISG Hotplate Stirrer features an enclosed assembly with protection class IP42 and DC brushless motor which guarantees long product life. Includes detailed Instruction Manual. All units are CE marked and individually quality checked.