Tint meters are used by the police to ensure tinted windows are of a legal standard. Tint meters are
also used by automotive workshops to ensure custom tinted windows are of legal standard. The tint
meters use a light at 550nm to measure total light transmittance with the bandwidth of 50nm spans
the general range of visible colour. The measurement reads out a value between 0% (opaque material
such as cardboard) and 100% (pure air).These tint meters are accurate within plus or minus 2% and
are not affected by humidity or stray light. They are reliable from 0º to 100º F, day or night.
