Twist Tester with Motor Operated Digital Counter is ideal for yarns measurement of the tpi and tpm of single and multiple plied yarns. The Twist Tester is available with a set of clamps, one of which rotating and the other fixed. The Twist Tester ensures that the rotating clamp is driven by hand through a speed increasing arrangement. Twist Tester with Motor Operated Digital Counter is further provided with a viewing plate and a magnifying glass for accurate determination of the end point.