Peterson 490-ST AutoStrobe Tuner with Stretch Tuning

  • Item # 0041362
  • Model # 403832
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The Peterson 490ST AutoStrobe Tuner with Stretch Tuning allows automatic (handsfree) note selection for fast, accurate tuning of instruments for students, technicians, and musicians at all levels. Thi… Learn More


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So fast you can check your intonation while playing.


  • Fast as light
  • Accurate to 1/1000 of a semitone
  • Automatic note selection
  • Tables with optimized tunings for all piano types
  • 31 programmable files
  • Strobe patterns appear at the correct note for Bb, F, and Eb instruments
  • External input
  • Through output with mute