Vortex stirrers Classic and Wizard are characterized by a highly innovative and ergonomic design, with particular materials used, ensures high stability. The technology they have, allow to obtain leading performance in terms of speed and accuracy and they have done to deserve the 'Award Winning Design!'rrVortex Classic has a dual mode of operation: 'A touch' automatic mode 'Touch' - the launch of agitation is achieved by light pressure of the specimen in the cup. 'Continuous' continuous operation mode using a high range of accessories (not included). Moreover Classic is equipped with a specific lever (Touch - Platform) that, appropriately positioned, it ensures maximum stability of the instrument according to the operating mode selected.rrWith optical technology that has, WIZARD presents a novel method of use ( 'Sensor'), absolutely unique in the market.rWhen this mode is activated, a system of infrared (IR) detects the presence of the specimen and automatically activates vibration! No pressure the user is not required to maintain vibration!rThanks to the activation mode 'Sensor' Wizard minimizes operator stress, dramatically improving the quality of their working conditions. Vortex Wizard can also be used with traditional continuous operation mode ( 'Continuous') combined with the use of a high range of accessories (not included).rrVoltage: 100-240 V