Pesola Medio 40300 Spring Scales 300 g

I repair sewing machines and sergers one of the problems you must solve is to properly set the thread tensions. Tensions may be as low as 12 to 15 grams or as high as 150 to 200 grams. Finding a scale that can measure the tension applied to the thread accurately at these low levels is difficult. If I was weighing diamonds or marijuana, I would have the selection of a large numbers of scales. But to measure the tensions the selection gets really small. There aren't any electronic suspension scales with the accuracy I need and certainly not at the price of these scales.