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This test gives you an easy-to-administer but highly effective method for
measuring any individual"s color vision. Used by the governmentindustry
for over 40 years, the test consists of four trays containing a total of 85
removable color reference caps （incremental hue variation） spanning the
visible spectrum. Color vision abnormalitiesaptitude are detected by the
ability of the test subject to place the color caps in order of hue. We also
include Windows?-based PC scoring software. The four trays are boxed in a
handsome carrying case. The test must be administered under daylight
conditions such as that provided by GretagMacbeth SpectraLight? and
Judge viewing booths or the Sol-Source desk lamp.