The GT-D04B Electronic Crockmeter is a professional-grade rubbing fastness tester designed to accurately determine the color fastness of textiles, fabrics, and materials to dry or wet rubbing. this crock meter features a high-precision electronic control system, motorized operation, and full compliance with major international standards like ISO 105 and AATCC 8. It is the ideal choice for garment labs and quality control facilities seeking reliable, automated, and repeatable color transfer testing solutions.