Boss TU-02 Clip On Tuner

Accurate, easy to read, and featuring a rock-solid grip on your headstock, the Boss TU-02 may just be the last clip-on tuner you ever buy!

With a bright color display, swivel adjustment, and four selectable modes, the versatile TU-02 offers reliable tuning for guitar, bass, ukulele, and other stringed instruments.

Secure and Reliable:

The TU-02's high-contrast color display provides accurate, easy-to-view tuning everywhere you play. The rugged, padded clip securely grips to your instrument's headstock, while swivel adjustment lets you position the display for the optimum viewing angle. A single CR2032 lithium battery provides continuous runtime up to 24 hours, and an auto power off feature conserves battery life when the tuner is idle.

Works with Guitar, Bass, Ukulele, and More:

With its versatile modes and quick-change design, you can tune a variety of instruments with the TU-02. Choose from standard tuning modes for guitar, 4- and 5-string bass, and ukulele, or chromatic mode for alternate tunings and other stringed instruments. Flat tuning over a range of two semitones down is supported, perfect for players who like to tune low for a heavier sound. And with adjustable calibration from 430 to 450 Hz, you can set the tuner to a reference other than the default 440 Hz standard if needed.


- Compact and accurate clip-on tuner with high-contrast color display
- Four tuning modes: chromatic, guitar, bass, and ukulele
- Up to 24 hours of continuous runtime with CR2032 lithium battery
- Auto power off feature conserves battery life when not in use

Tuning Range: A0 (27.5 Hz)--C8 (4,186.0 Hz)
Reference Pitch: A4 (430--450 Hz)
Tuning Accuracy: +/- 1 cent
- Flat Tuning: Regular--2 semitone lower
- POWER/M (mode) button
- A4 button
- Flat button
Display: Backlit color LCD
Power Supply: CR2032 lithium battery x 1
Current Draw: 7.5 mA
Expected battery life under continuous use: Approx. 24 hours (These figures will vary depending on the actual conditions of use.)
Auto off function: Approx. 5 minutes
- 28 (W) x 38 (D) x 50 (H) mm
- 1-1/8 (W) x 1-1/2 (D) x 2 (H) inches
Weight (including battery): 25 g (1 oz)
Accessories: Owner's manual, CR2032 lithium batter
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 0.25 lbs
Shipping Dimensions: 4 x 2 x 2 in
Manufacturer Part Number (MPN): TU-02

For support or warranty questions, please contact the manufacturer:
Phone: 323-890-3700


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