Ortofon Stylus pressure gauge/Scale The Ortofon tracking force gauge is a simple budget tool for turntables that is used to determine the stylus tracking force. The tracking force is the downward pressure that is applied by the weight of the tonearm through the cartridge stylus and onto the vinyl record. It is important to set the proper tracking force in order to maximize the playback performance and to reduce the risk of mistracking or causing excessive record wear. Check for the manufacturers recommended settings for your stylus tracking force. The Ortofon tracking force gauge tool is a small plastic pivot type scale that will accurately measure tracking force between 1.25 g and 4 g.