Boss TU-02 Clip Tuner

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Clip Tuner

Clip-on tuner
Compact and precise
High-contrast colour display
4 Tuning modes: chromatic, guitar, bass and ukulele
Up to 24 hours of continuous operation with CR2032 lithium battery
Automatic shutdown function saves the battery when not in use
Tuning range: 30 - 4000 Hz
Reference tone A4 (430 - 450 Hz)
Tuning accuracy: +/- 1 cent
Dimensions (W x D x H): 28 x 38 x 50 mm
Weight (including battery): 25 g

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3-Year Thomann Warranty

Available since February 2021
Item number 511597
Sales Unit 1 piece(s)
Chromatic Yes
Display LCD
Integrated Microphone No
Integrated Metronome No
PSU Connector No
Design Clip On
Special Features non
Dimensions 28 x 38 x 50
Weight 25 g

€11.90

All prices incl. VAT

Sales Rank

in Guitar/Bass Tuners

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202 Customer ratings

5 147 Customers 4 36 Customers 3 6 Customers 2 6 Customers 1 7 Customers

4.5 / 5

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118 Reviews

Old faithful

Thubbsy 03.07.2022

At the end of the day, you don't want to fuss with your tuner and you just want tit to work. The TU-02 clips on the headstock of your instrument, you turn it on and you're done. If you use it on one type of instrument and use standard tuning, just set it to that instrument's mode and leave it there. I use it on my guitars, bass and ukulele so I just keep it in chromatic mode.

I turn it off as soon as I'm done tuning and the battery is still going strong after 10 months.

The only downside is that you can accidentally press other buttons on the tuner (ie change the instrument or the calibration) if you're not careful, but if you keep that in mind, you get used to using it.

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Work great

AdamOcallaghan 24.03.2021

Reliable Boss Tuner. Take your time with it and you'll get your instrument in tune nicely, and a great price. The TU-02 and TU-03 are both great. Avoid the TU-01, it's a complete waste of industrial output

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Surprisingly poor

Louie Louie 09.05.2025

I've owned plenty of Boss gear over the years and nothing has ever let me down. Sadly this tuner is an exception.
- It isn't accurate. Eg: On my 12 string it will report that the two high E strings are right in tune, when they're very audibly not nearly at the same pitch.
- It won't work if there is any other noise in the room.
- It only displays EADGBE for guitar - and often can't decide which one of those it is - so no use with a capo.
- The on/off switch is a toggle switch on the same super-small button as the instrument select. So instead of switching it off, you invariably set the thing for tuning a ukulele.
These little inexpensive tuners always go missing - especially mine. Well, I hope one of my bandmates steals this one soon. It's the worst one I've owned.

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Good Clip tuner overall

Alhassan 22.06.2021

Feels good, and most of the time it works perfectly, except for some incidents, it doesn't display the right note of a string but it shows if its sharp or flat.

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Boss TU-02 Clip Tuner

Clip Tuner

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202 Customer ratings

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118 Reviews

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Clip Tuner

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