Digital overhead shaker with vertical rotation for smooth yet effective mixing with infinitely adjustable speed from 5 - 80 rpm. Ideal for biological samples, particularly blood. Suitable for separating and mixing processes of powdered and liquid samples in Eppendorf and Greiner tubes up to 50 ml. Easily removable attachments (three attachments fit on one drive) provide for quick cleaning in case of sample spills. 1) Timer: Countdown, adjustable from 1 s to 99h 59min. 2) Counter: Display of shaking time. 3) Different attachments allow a variety of applications. 4) Usable at 4 to 50 °C in incubators. 5) Suitable for continuous operation.