... grip 3.Criteria: ASTM,EN, DIN, yarn testing instrument yarn testing instrument is widely used to test tension ,tear ... with build-in printer, can print the testing date, time, maximum, average and minimum value. yarn ... Accuracy :within ±0.5% Maximum trip :1000mm (excluding fixture)Test speed :30~300mm/minOutside Dimension(L×W×H) : ... :AC frequency conversion controlAccessory: One set of tension fixture