... Color Meter 1).Check the color difference between two samples 2).Tolerance function 3).Auto memory (99 sets) & RS-232 TES-135 Color Meter ... + Promoting Item & Free ShippingCheck the color difference between two samples. Color difference displayed Δ(L*,a*,b*) ... at 45°, measurement at 0°Measuring area:Approx.f2mmDisplay modes:Color differenceΔ(L*,a*,b*), Δ(E*ab,C*ab, H ...