A hematological analyzer is a device (equipment complex) designed to conduct quantitative studies of blood cells in clinical diagnostic laboratories. They significantly simplify the work of a laboratory technician.

Any modern hematological analyzer is a complex of mechanical, hydraulic, pneumatic and measuring systems. The hydraulic and pneumatic systems are responsible for collecting reagents from containers, delivering the sample and reagents inside the analyzer, and removing waste outside the analyzer. The mechanical system is responsible for moving the sample collector or automatic feeder, depending on the model, as well as for controlling the sliding valve and various types of stirrers