For MM//MI and piezoelectric acoustical pickup, nonmagnetic, no magnetic field adhesivity, reading reliable. 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. Automatic turn-off after one minute inactivity(adjustable). There are 7 units and the less-used units can be hidden by setting. Specification: Capacity : 0-100g Graduation : 0.005g highly sensitive Dimensions : 95 X 45 X 13 mm Power : 1X AAA battery( no included ) Weight Unit : g, oz, ct, ozt, , gn,TL Backlight: blue backlight Automatic low battery alarm Material: Metal colour: As shown Package Contents: 1 x Digital Stylus Tracking Force Scale Gauge 1 x Extra tray 1 x 20g weight 1 x english User manual 1 x box Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.