Compact and lightweight stirrers making lack of laboratory bench space no longer a concern. These stirrers incorporate electronic controls that allow the user to regulate the speed with greater precision. Low cost magnetic stirrers capable of stirring up to one litre. STI2500 features an ABS plastic cover, while STI2510 has a stainless steel cover. 'Speedsafe' ensures that the maximum speed is never exceeded. Supplied with teflon coated stirrer bar.