Rapidiff makes it possible to count, differentiate and compute organisms such as phyto- and zooplankton from rnultispecies studies and surface waters or mixed cultures with microorganisms without the interruption of the visual observation on the microscope. Up to 28 organisms can be seized in a single counting operation. Upon termination of the counting, by connecting the device to a PC, the values can be visualised and printed as an EXCEL table. The Rapidiff can be disconnected from the power supply without the loss of data, therefore it can be used at any place where a power supply is available and the data transfer and compilation be carried out later on any adequate PC.

Models for counts of less organisms, battery operated, with or without PC connections are available.