Absorbance reader for measuring wavelength in samples. Measures wavelength of 96 well micro plates using selected filters. Designed for ELISA and Protein Assays. Wave length absorbance reader has LCD touch screen and USB storage drive. Spectroscope measures 340nm to 750nm. Absorbance wave length reader is sold with 4 popular filter sizes: 630, 492, 450, 405nm. Other additional filter sizes are sold in the range of 340nm to 750nm. Filter wheel allows for 8 different absorbance filters to be loaded at once. 2 absorbance filters may be used simultaneously to measure the same plate.