Precise Test DevicePrecise Test Device with High Accuracy of Tonearm Force Calibration. For MM/MC/MI and Piezoelectric PickupNon Magnetic, Magnetic Field Independent. Complete AccessoriesLCD Display Screen with Blue Backlight, High Quality Stainless Steel Platform and Protective Bag. Precise Force Precise Tonal Arm Strength is Important for Good Playback and Record and Pickup Life. Long Standby TimeOne Balance Weight and Two Batteries Supporting Long Standby Time Wait. Product Digital Tone Arm Scale High Accuracy Digital Turntable 0.01g Stylus Force Gauge Tester with Blue LCD Backlight Technical Specifications: Measurement Range: 0-5.00g (displayed as three digits) Error: 0.01g - very responsive Size: 96X43X20mm Power supply: 2 lithium batteries 1.5V Ag12 (included in delivery) Digital Tonearm Scale Digital Turntable Scale Display 0.01g including TE386 BATTERIES Blue Backlight High Quality Stainless Steel Scales Packaged with High Quality Leather Sheath for Good Protection Easy to Use; Auto Shut Off After 2 Minutes of Inactivity. Noble, Non-Magnetic Beam Cradle Includes 1X Calibration Weight Low stylus force leads to poor audio performance. Here the Proster Turntable Stylus Force Scale was developed to solve your headaches with a small calibration weight. Exact Digital Tonearm Scale of your Choice Precise pen force is important to the life of your valuable records and tapes Too much pen force will shorten the life of the recorder/ of the stylus. Too little pressure makes troubleshooting easier. Scope of delivery: 1 x Digital Tonearm Scale 1 x Weight for calibration