Boss TU-3 Tuner
The most famous stage tuner of all time
Perhaps the most used tuner in the world! The Boss TU-3 is a rock solid pedal that lets you tune quickly and clearly on stage or anywhere. The 21 LEDs are bright enough to be clearly visible even in daylight. In addition to the chromatic mode, you also have a few "presets" for Guitar/Bass. You can also tune up to 6 semitones lower with the "Flat Tuning" mode.
- Tuning Range: C0 (16.35Hz)–C8 (4186Hz)
- Reference Pitch: A4=436–445 Hz (1Hz step)
- Tuning Accuracy: ±1 cent
- Power Supply DC 9 V: Dry battery 6F22 (9 V) type (carbon), Dry battery 6LR61 (9 V) type (alkaline), AC Adapter (PSA series: optional)
- Current Draw: 30 mA (DC 9 V), 85 mA (DC 9 V, when High Brightness mode is on)