Tuner from Peterson. StroboClip HD (SC-HD) has the same tenth-of-a-cent accuracy as all Peterson Strobe Tuners. This versatile tuner comes complete with a bright high-definition screen, over 50 Sweetened tunings, alternate temperaments for a vast array of string and wind instruments, and soft rubber-lined jaws to protect your instrument's finish while offering a firm grip for maximum signal tracking.