This system adds electromagnetic stirring capability to the Series TM heating mantles for spherical flasks. The electronic StirControl creates and synchronizes a rotating magnetic field within the StirMantle that drives the stir bar inside a flask. Two separate StirMantles can be operated simultaneously by one StirControl. Heating and stirring are independent; choose either or both. Speed easily adjusted by a single dial (50-750 rpm). StirControl and StirMantle attach with connecting cord. Cord allows remote location of StirControl out of corrosive hood environment. Complete system includes one StirMantle, one StirControl, connecting cords and stir bar. 115 volt. One year warranty. CSA Approved.