Today, colorimeters, spectrophotometers and spectrophotometric colorimeters (sometimes referred to as spectrocolorimeters) are the most commonly used instruments for measuring colour worldwide.

One of the most commonly used spectrophotometers in industry is the Sphere Geometry (d/8 or 8/d), Reflectance, Spectrophotometer.

The TR 500 & TR 520 are cost effective, versatile, handheld, sphere geometry (d/8 or 8/d), spectrophotometers that are designed to give fast, precise and accurate colour measurement information on a range of products.