The Measure it E Stylus Tracking Force Gauge is a highly accurate electronic balance that is designed for measuring stylus tracking forces up to 5.0 grams in 0.002 gram increments. Each Measure it E can easily be calibrated using the supplied calibration weight and by pushing a button. Whenever in doubt about the actual amount of pressure on the diamond tip the 4 digit display of this smart tool will help. Armed with precise information about tracking force, your stylus tip wear can be significantly reduced.