Audio-Technica AT6180a Stroboscopic Disc

AT6180a Stroboscopic Disc. Key Features: (50 Hz / 60 Hz) 33 - 45 rpm Close fit for accuracy Spindle radius guide

Audio-Technica AT6181DL Stroboscope Disc and Quartz Strobe Light

AT6181DL Stroboscope Disc and Quartz Strobe Light.   Key Features: Stroboscope disc and light kit allows you to precisely check a turntable’s rotation speed. Yellow LED light provides a clear, accurate reading of 33 1/3, 45 and 78rpm speeds. Exclusive flashing light pattern to measure 78 RPM. Useful overhang guide is included on the stroboscope disc.