Automatically stops heating when the temperature is over 380C. Variable speed of motor with electronic speed control. Constant speed even during changes in load. High magnetic adhesion (prevents stir bar from escaping). This product also comes with 2 magnetic stir bars.The item "Torrey Hills Magnetic Stirrer Hot Plate" is in sale since Sunday, May 9, 2021. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Lab Mixers, Shakers & Stirrers\Magnetic Stirrers & Hotplate Stirrers". The seller is "newnett2016" and is located in Kansas City, Missouri. This item can be shipped to United States.