The Measure it S2 Stylus Tracking Force Gauge is a highly accurate electronic balance that is designed for measuring stylus tracking forces up to 5.0 grams in 0.001 gram increments. Each Measure it S2 can easily be calibrated with the included calibration weight. The Measure it S2 has a solid aluminum housing with a 4-digit LCD backlit display. 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.