Used for determine the number of hairs (hairiness index) of fibres protruding from the yarns over a specific length.Hairiness length setup range: 1, 2, 3, 4, 5, 6, 7, 8mmHairiness length setup precision: ≤0.1mmYarn speed accuracy: 30m/min±5%Sample length: 1-99mSet test times: 1-99