It's deal for guitar, bass, and ukulele, and is the most affordable tuner in the trusted BOSS lineup. Small, durable, and simple to use, it provides convenient, reliable tuning right on your instrument’s headstock.

A bright, attractive display features a cool digital meter and note indicator, plus two lights that show when you’re perfectly in tune. The TU-01 also adjusts for different viewing angles and folds down for easy transport in your case or gig bag.

- Renowned BOSS tuning quality in an affordable clip-on tuner
- Features Chromatic, Guitar, Bass, and Ukulele tuning modes
- Convenient reference pitch function (A=440 Hz)
- Runs for up to 25 continuous hours with a CR2032 lithium battery
- Auto off function to preserve battery life when the tuner is not in use

- Renowned BOSS tuning quality in an affordable clip-on tuner
- Features Chromatic, Guitar, Bass, and Ukulele tuning modes
- Convenient reference pitch function (A=440 Hz)
- Runs for up to 25 continuous hours with a CR2032 lithium battery
- Auto off function to preserve battery life when the tuner is not in use

Tuning Range - A0 (27.5 Hz)--C8 (4,186.0 Hz)
Reference Pitch - A4 (440 Hz only)
Tuning Accuracy - +/- 1 cent
Tuning Mode - CHROMATIC / GUITAR / BASS / UKULELE
Control - Power switch / Mode switch
Display - Backlit LCD
Power Supply - CR2032 lithium battery x 1
Current Draw - 6 mA
Expected battery life under continuous use - Approx. 25 hours
* These figures will vary depending on the actual conditions of use.
Auto off function - Approx. 7 minutes
Accessories
- Owner's manual
- CR2032 lithium battery
SIZE AND WEIGHT
Width
- 56 mm
- 2-1/4 inches
Depth
- 31 mm
- 1-1/4 inches
Height
- 32 mm
- 1-5/6 inches
Weight (including battery)
- 30 g
- 2 oz

FINANCE

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GAK.CO.UK LTD is registered in England and Wales 04578270. Registered office: 30 - 34 North Street Hailsham East Sussex BN27 1DW GAK.CO.UK LTD acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. GAK.CO.UK LTD is an appointed representative of The Guitar Amp and Keyboard Centre Limited which is authorised and regulated by the Financial Conduct Authority. GAK.CO.UK LTD FCA registration number is 731400. The Guitar Amp and Keyboard Centre Limited FCA registration number is 684977. Credit provided subject to age and status

V12 Retail Finance Limited. Registered in England and Wales 4585692. Registered office: One Arleston Way, Solihull, B90 4LH. Authorised and regulated by the Financial Conduct Authority. Our FCA reference number is 679653.

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Customer reviews

Jayne Crean - James's missus

20/8/2020

Although I have a pretty good ear, it's always a good idea to make sure :)
Mrs Rachel Woods

21/7/2020

Does exactly what it says on the tin! A superb little tuner.
Janey

29/6/2020

Good basic tuner
Robert Holmes

12/4/2020

Simple and easy to use
Mr Anthony Knapp

25/12/2019

Clever tech

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Boss TU-01 Clip-On Chromatic Tuner

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