Huhushop(TM) NEW Vesion Professional LP Digital Turntable Stylus Force Scale Gauge led High precision and accurate stylus gauge for accurate stylus force adjustment. Accurate stylus force is important for ensuring the playback result and life of your valuable records and cartidge. Too high stylus force results in shortened record/stylus life while too low stylus force result in easy mistracking and both of the cases with come into poor audio performance Dimensions : 96 X 43 X 20 mm Power : 2 X 1.5V lithium cell Ag12 (not included) For MM/MC/MI and piezoelectric acoustical pickup, nonmagnetic, no magnetic field adhesivity, reading reliable.