VWR Advanced magnetic stirrers deliver accurate and repeatable results. These easy to use microprocessor controlled units have an analogue dial with rpm adjustment markings. Rear housing features an integral support rod holder with locking knob to accept the optional support rod and clamp kit. The low profile design takes up less space and fits into fume hoods. Spill resistant housing channels fluids away from internal components. Enhanced electronics regulates stirring - speed control is precise and stirring consistent at all speeds. Ramping feature slowly increases speed for improved safety and enhanced coupling, avoids splashing, improves spin bar control, and provides excellent low end speed control. Ceramic tops feature a chemically resistant, reflective white top plate surface that is easy to clean. Built-in support rod holder Microprocessor control with analogue dial Chemically resistant housing Ceramic top plate