The light source of Linshang LS116 Transmittance meter has a full wavelength of 380nm-760nm, which conforms to the CIE bright vision function standard, the measurement accuracy is better than ± 1% (colorless uniform light-transmitting material), the resolution is 0.001% (0%~ 10%) 0.01% (10%~ 100%), sample measurement Film thickness < 100mm, sample measurement diameter > 10mm.