Hypertherm GZ-06 Glossiness Meter 60 ° Single Angle Gloss Meter Measurement angle 60 °, range 0.1~ 200GU, photometric unit GU, Precision +/- 1.0 (relative to reference standard), resolution 0.1, Repeatability +/- 0.5GU, measurement area 7x14mm (ellipse), numerical memory 254 groups