The tension meter MST is an electronic yarn tension meter with motorized take-up fixture for measuring and adjusting the tension on sewing machines. Therefore, yarn brakes can always be adjusted under constant conditions (speed of the thread 9 m/min) to ensure the best sewing quality. The device is available in 4 measuring ranges from 1 - 200 cN to 1 - 2000 cN. The tension meter saves MIN-, MAX, last reading, average and standard deviation. The device provides additional to the USB interface a memory for max. 60000 readings, split on max. 999 measuring periods, as well as 5 memory modes with statistical evaluation and PEAK capture. The colored, backlighted TFT display can be rotated for better reading in 90° steps and has 3 different display modes (numeric, numeric with live bargraph and numeric with graph). To simplify working with different materials, up to 3 material curves can be saved and adjusted for similar material by using the fine tuning. Operations with the tension meter will be facilitated by the automatic zero-setting in each measuring position, as well as the adjustable electronic damping, which is used, when tension fluctuates. The device can be easily placed on the work surface next to the sewing machine using the supplied vacuum foot.