Dynex Technologies MRX-TC Revelation Microtiter Plate Reader,endpoint, kinetic and tissue culture/agglutination assays in one compact instrument. Wavelength Range: 405-850 nm Dynamic Range: -0.100 to 4.000 OD, Linearity: 0.000 to 2.000 OD +/- 1% and 2.001 to 3.500 OD +/- 1.5%, Filter bandwidth: 2nm, Accuracy: 2.5% or 0.005 OD whichever is greater (0 to 3.5 OD) without software -