Specifications Measurement System 8-Channel optical system Measurement Range 0.001~4.000ABS Photometric Accuracy ± 1% or ± 0.01ABS Repeatability? ? ± 0.5% Stability <0.005ABS Linearity? ? ± 1% Reading Speed? ? 5secs/96wells(single wavelength) ? ? 7secs/96wells(double wavelength) Filters Standard: 4 filters (405, 450, 492, 630 nm) or other wavelength on request. Totally 10 filters can be installed.