The CELLSPIN is a moisture-resistant stirrer for cultivating cells in spinner bottles with culture volumes from 100mL to 1L. It offers a wide range of stirring options for accurate optimisation and control of culture conditions. The speed (5rpm to 75rpm) and other stirring parameters can be individually programmed and modified at any time via the control unit, which is located outside of the incubator. In case of power failure or accidental disconnection of control and spinner units an alarm system is activated.