for LP Vinyl Record Turntable Phono Calibration Strobe Disc Strobosco and high qualityIntroduction:Double-sided , one side is the speed measuring function, and the other side is the for head angle calibration function. Specially designed to detect the rotational speed of your for LP vinyl record and adjust the position of and stylus so that you can enjoy high quality sound. The eential adjustment tool for LP vinyl record amateurs, practical and versatile, convenient to debug the machine.Features:For LP vinyl record for head calibration and rotational speed .33/45/78 RPM, 50/60Hz rotational speed and adjustment.Adopting nearly 180g disc thickne.Cheand adjust the angle of the and stylus.Great well to chewhether the rotational speed and angle your vinyl record is right or not.Designed for use in artificial light, it can also be used under domestic fluorescent lamps with ballasts.P the disc on your platter, turn on your light and then adjust your turntable's speed control until the pattern on the disc doesn'for t move. only, other acceories demo in the picture are not included!Tips:1. The meter must be d under 50Hz strobe light.2. Cannot be used under DC-powered LED lights.Specification:Material: PlasticType: TurntablesColor: WhiteSize: One SizeDiameter: 29.7cm/ 11.69inQuantity: 1 PcNote:1.No retail package.2.Please allow 0-1cm error due to manual measurement. pls e sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:1 x