Widely used in Floor maintenance, Surface cleaning quality control, Stone and tile gloss measurement, Checking printed matter, Quality control of paint and ink, Polished metal surface ,measurement (chrome plating), Inspection of paint protection and waxing, Auto-body paint inspection,Surface inspection of plastic moldings, Evaluation of detergents and washers,Checking masonry and washers, Checking building exteriors. Model No:GM-268（optional: GM-6,GM-26) TECHNICAL SPECIFICATIONS Display:4 digits backlit LCD Measuring geometry:20/60/85 Degrees (GM-6：60Degrees，GM26：20Degrees and 60Degrees) Range: 0.1 to 200 gloss units Accuracy:±1.0 gloss unit ( against reference standard ) Resolution: 0.1 gloss unit Repeatability: ±0.5 GU(0 ... 99.9) Measuring area: mm ellipse Data memorized: groups Data output: RS 232 C serial interface Power supply: battery:4×1.5VAAA Dimensions: main unit:156 x67x28mm Separate sensor:58x28x108mm Weight:about 305g ( including fitted batteries ) Working condition: Temperature range 0 - 40℃ Humidity up to 85%