Audio-Technica AT6181DL Stroboscope Disc And Light

The AT6181DL kit includes a stroboscope disc along with a quartz strobe light, giving you everything you need to precisely check your turntable's rotation speed. The light’s yellow LED provides a clear, accurate reading of the stroboscope’s high-contrast markings for 33-1/3, 45 and 78 RPM speeds. Stroboscope disc also includes an overhang guide. SpecificationsStroboscope DiscSpeeds: 33-1/3 RPM, 45 RPM, 78 RPMDimensions: 104 mm (4.09") diameterWeight: 35 g (1.23 oz)Strobe LightFrequency:    33-1/3 RPM, 45 RPM: 120 Hz78 RPM: 234 HzBattery: AAA (alkaline or nickel-hydrogen) × 2, sold separatelyBattery life: Approx. 8 hours (continuous use)Dimensions: 32 mm (1.26") W × 19 mm (0.75") D × 115 mm (4.53") HWeight: 35 g (1.23 oz), without batteries   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 78 RPM speeds Useful overhang guide is included on the stroboscope disc