These durable, portable systems allow you to make quick visual comparisons between your sample and a range of stable colored glass standards on a disc. Battery operated illuminator offers flexibility for laboratory, plant, or field color grading. With the two-section field of view, the sample transmittance is directly compared with individual colored glass standards on a test disc.

The comparator is an easy-to-use, entry level color measurement system that compares the color of the sample directly against the color of glass in a disc. Just rotate the disc to get the closest result to the scale. Ideal for light-colored samples with visual color (pathlength up to 40 mm); an illuminator is added to systems for measuring unsaturated samples requiring a longer pathlength.

The AF329 is a special kit for visual color grading using Platinum-Cobalt/Hazen/APHA Color over the range 0-250 Pt-Co units. It is typically used for light yellow liquids such as water, oils, and chemicals. Because the sample colors are relatively unsaturated, the kit employs a long path length Nessleriser comparator to give greater measurement sensitivity and accuracy. The Comparator 2000+ is an easy-to-use, entry level color measurement system that compares the color of the sample directly against the color of glass in a disc. All you need to do is rotate the disc to get the closest result to the scale.