Automated cell counters are devices that tally, measure, and describe populations of biological cells. This data is determined by either an electronic or optical mechanism. Electrical analysis relies upon a Coulture counter, which accounts for the resistance of the cells to a current when placed in an electrolyte solution. Optical analysis measures the reflection of cells in a given area when passed in front of a laser beam; software then provides an estimation of the cell count. These medial devices are typically found in medical labs, and represent a crucial innovation in medical diagnoses due to its efficency when compared to manual counters.