Used Optichem digital Chemglass safety control (made by IKA) hotplate/ stirrer The stirring plate diameter 5.5 inches. Rotation speed variable 0-1500 rpm.115v, The speed regulator chipped off and need to be replaced- it spin with fixed speed. The heating regulator works good.. The descriptions and photos represent best efforts to convey information and our opinions about a product. We expect some items to have limited functionality and/or require repairs. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Lab Mixers, Shakers & Stirrers\Magnetic Stirrers & Hotplate Stirrers"." and is located in this country: US. This item can be shipped worldwide.