Accurate stylus tracking force is important for ensuring the playback result and life of your valuable records and cartridge. Too high stylus tracking force results in shortened record/stylus life while; too low stylus tracking force results in easy mistracking. Both too high stylus tracking force and too low stylus tracking force result in poor audio performance. So you need a accurate stylus gauge to measure your stylus force. Features: Accurate stylus gauge for stylus tracking force measurement. Large LCD screen, easy to read With blue backlight, convenient to use in a dark Automatically power off when there is no operation for 3 minutes. High precision, high sensitivity Specifications: Measurement range: 0-5.00g ( display 3 digit ) Accuracy: 0.01g Unit: g / oz / ozt / dwttl/ ct / gn Battery: 2 x 1.5V lithium cell Ag12 (NOT included) Stainless steel weighing area: Nonmagnetic Dimensions: 96 * 43 * 20mm / 3.8 * 1.7 * 0.8in Color: Black Package weight: 85g Package Included: 1 x Stylus Tracking Force Gauge 1 x Calibration weight 1 x Leather case Note: Please allow 1-3mm errors due to manual measurement. Due to the difference between different monitors,there are color differences, pls take the real product as the standard For MM/MC/MI and piezoelectric acoustical pickup, nonmagnetic, no magnetic field adhesive, reading reliable.