A Tonarmwaage, or tonearm scale, is a precision instrument used in the context of turntables and vinyl record players to measure the tracking force applied by the tonearm to the stylus. This measurement is crucial for optimizing the sound quality and preventing damage to both the record and the stylus. Proper tracking force ensures accurate playback and minimizes wear on the vinyl. Users typically adjust the tonearm's counterweight based on the scale's readings for optimal performance.