Nonmagnetic, help you adjust the stylus force of your record player, , keep the record machine's good performance. With Tare function, automatic calibration weight and turn-off. Auto power off after 3 minute without operation(set up). Place the electronic needle pressure gauge horizontally on the turntable (use it without placing a record. If there is a record, the height be inconsistent, which slightly affect the accuracy). Move the stylus to the center of the measuring needle pressure handle. The corresponding weight of the stylus be displayed. Working temperature:10-30 LCD display:5-digit LCD display Backlight color:backlight Product size:110x22x47.5mm Product weight:77g Tray size:37x37mm Unit switch: g or ounce or ozt or (tl) or ct or gnCapacity or Accuracy Colour:As Shown Material:Metal Package Contents: 1 x Digital Dynamomter Only the above package content, other products are not included. Note: Light reflection 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.