TU-3S Chromatic Tuner

A compact, always-on chromatic tuner delivering the same pro-level accuracy as the TU‑3—sans footswitch, perfect for space-efficient pedalboards. The BOSS TU-3S is a highly respected chromatic tuner, well-known among players for its consistent performance and durable design. This compact tuner delivers the same industry-standard functionality as the original TU-3 but in a more pedalboard-friendly form.