The GESTER GT-D04 Crockmeter Machine is a motorized, high-precision test instrument designed for high-throughput testing of textile color fastness to dry or wet rubbing. Powered by a motor-driven system with a preset electronic cycle counter (up to 9,999 cycles), crockmeter rubbing fastness tester GT-D04 eliminates human speed variability and automatically stops upon test completion. Designed for woven, knitted, and dyed fabrics, it guarantees strict compliance with ISO 105-X12, AATCC 8/165, and ASTM D6279.