The DiaSys Photometer 505 is a semi-automatic, benchtop filter photometer for clinical chemistry that offers a wide range of measurement methods for small to mid-sized laboratories. Key features include an automatic filter wheel for wavelength adjustment, a peristaltic pump for low-volume fluidics, a high-quality flow cell, a touch screen, and the ability to program up to 200 methods in addition to pre-programmed DiaSys reagent applications. It can also perform multiple standard and non-linear calculations and be controlled remotely via a PC