Variable speed of motor with electronic speed control. Constant speed even during changes in load. High magnetic adhesion (prevents stir bar from escaping). Product Dimensions: 12 x 7 x 4 inches. The item "Magnetic Stirrer Hot Plate 5.3 Ceramic Coated Plate, Torrey Hills" is in sale since Sunday, December 22, 2019.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 "tom1jae" and is located in Menlo Park, California. This item can be shipped worldwide.