Used BOSS TU3S Tuner Pedal

Keep your rig in tune with this used BOSS TU-3S Tuner Pedal in great condition. Compact, rugged, and pedalboard-friendly, it delivers fast, accurate tuning with a bright LED meter that’s easy to read on dark stages. Chromatic tuning supports guitar and bass, with a wide detection range (C0–C8) and A4 calibration from 436–445 Hz. True bypass preserves your tone, and the always-on display makes quick checks effortless.