... scientific research. Magnetic Stirrer With HotplateHeating Control 0-2400rpm Stepless Speed GovernorStainless steel top plateEasy to use, large capacity, compact design, high ... SupplyAC 220V 50HzAC110V 60HzSpeed0-2400rpmMotor powers40WHeating power250WTemperature control rangeRT-100Stainless steel top plate, easy to use, compact design, high quality, reliable. Magnetic ...