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Boss TU-02 Clip-on Tuner

Name: Boss TU-02 Clip-on Tuner
Brand: Boss
Rating: 4 (16 reviews)

Clip-on Instrument Tuner with High-contrast Color Display

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Item ID: TU02

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Bright and Accurate Clip-on Tuner

With its bright screen, rotating swivel, and multiple modes, the BOSS TU-02 is the perfect go-to device for guitarists and bassists in need of a convenient, accurate clip-on tuner. Ideal for dark stages and venues, the TU-02’s high-contrast color display gives you a clear view of your tuning, with a swivel adjustment allowing optimal usage at any angle. Sweetwater musicians love the tuner’s rugged, padded clip, which secures firmly to your headstock, ensuring stability and the most accurate note transfer possible. Plus, a single lithium battery powers the TU-02 for up to 24 hours, and an auto-off feature makes sure the tuner is only in use when you need it most.

BOSS TU-02 Clip-on Tuner Features:

Clip-on tuner with single battery operation
Up to 24 hours of use on 1 battery
Incredibly precise tuning (+/- 1 cent)
Swivel adjustment allows usage at many angles
Bright color display
Auto shut-off feature preserves battery life
4 tuning modes: chromatic, guitar, bass, and ukulele

Resources

Best Clip-on Guitar Tuners

Sep 12, 2025

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Tech Specs

Type: Chromatic
Instrument: Guitar/Bass, Ukulele
Format: Clip-on
Display Type: Backlit Color LCD
Reference Pitch: A4 = 430-450Hz
Tuning Range: A0-C8 (27.5Hz - 4186Hz)
Accuracy: ± 1 cent
Tuning Modes: Chromatic, Guitar, Bass, Ukulele
Batteries: 1 x CR2032 battery (included)
Power Supply: Up to 24 hours
Height: 1.96"
Depth: 1.49"
Width: 1.1"
Weight: 0.88 oz.
Manufacturer Part Number: TU-02

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Reviews

4.0

Customer Photos & Videos

light, folds flat, nice read on the dial. Be sure to see on lower right display, that you click your choice of G for guitar tuning, or one of the others, at startup.

Boss nice tuner. bright

I have used this clip on tuner for over two years now and it's super handy and very accurate. I have a tuner on my pedal board, but sometimes it's nice to just have one right there on your guitar that you can quickly access. Easy to see, easy to use

New Snarks have too thick of lines on the screen, you can't get an exact tune from them. This Boss tuner has finer lines & is more precise. Also in G mode it displays only EADGBE, no sharps or flats, so you can't accidentally tune into those without your glasses! Not rechargeable , I like old school battery operated tuners so I am pleased

I use this tuner for my Classical guitar and it works very well. Easy to read, accurate, and small. It replaces another brand tuner where the plastic was deteriorating and becoming tacky. Completely satisfied. Great service from Sweetwater, too.