Used BOSS TU3 Chromatic Tuner Pedal

Used BOSS TU-3 Chromatic Tuner Pedal in excellent condition, delivering fast, accurate tuning for guitar or bass with BOSS’s rugged stage-ready build. It features a bright 21-segment LED meter with High-Brightness mode for outdoor visibility, chromatic and guitar/bass tuning modes, and reference pitch calibration from 436–445 Hz. Supports standard tuning plus flat tunings down to 6 semitones, includes a mute/bypass function, and runs on 9V power for dependable performance.