It features different assay methods including End Point, Kinetic, and Fix time and relies on Photoelectric Colorimetry principle. Light is provided by a 12V/20W halogen lamp. Photometry range is 0-3Abs with 0.0001Abs resolution. Ten wavelengths are optional at 340-800 nm. It can also do 400 tests per hour. The reagent tray has 59 reagent positions and 1 for detergent. Sample tray has 75 positions for samples including standard, QC, STA, and detergent position. The reaction tray has 120 reaction positions. Sample volume is 2-100ul with increments of 0.1ul. Reagent volume is 10-500ul for R1 and 10-500ul for R2 with increments of 0.5ul. Minimum reaction volume is 150uL and maximum reaction time is 10 minutes. It consumes 6L/hour of water when working. Also, the unit features an auto-washing system with 8 steps using detergent and water with 37? temperature. It features calibration reset and choosing the best test point by reaction curve. A second calibration isn't needed. It follows Westgard multi-rule, cumulative sum check, twin plot three level controls for every item, and analysis and printing of QC diagram.