---
product_id: 258127461
title: "TU-3 Chromatic Tuner Pedal"
brand: "boss"
price: "¥30463"
currency: JPY
in_stock: true
reviews_count: 5
category: "Boss"
url: https://www.desertcart.jp/products/258127461-tu-3-chromatic-tuner-pedal
store_origin: JP
region: Japan
---

# Chromatic & Guitar/Bass tuning modes 21-segment LED meter with precision High-Brightness Mode for outdoor use TU-3 Chromatic Tuner Pedal

**Brand:** boss
**Price:** ¥30463
**Availability:** ✅ In Stock

## Summary

> 🎶 Tune like a pro, shine like a star!

## Quick Answers

- **What is this?** TU-3 Chromatic Tuner Pedal by boss
- **How much does it cost?** ¥30463 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/258127461-tu-3-chromatic-tuner-pedal)

## Best For

- boss enthusiasts

## Why This Product

- Trusted boss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Rock & Roll:** Rugged stompbox design with battery or 9V power supply keeps you stage-ready and worry-free.
- • **Cut Through the Glare:** High-Brightness mode ensures perfect tuning visibility even under bright stage lights or outdoor settings.
- • **Precision at Your Feet:** 21-segment LED meter with Accu-Pitch sign delivers pinpoint tuning accuracy every time.
- • **Versatile Tuning Modes:** Switch seamlessly between Chromatic, Guitar, and Bass modes, including support for 7-string guitars and 6-string basses.
- • **Drop It Like It’s Flat:** Flat tuning mode supports drop tunings up to 6 semitones below standard pitch for ultimate tonal flexibility.

## Overview

The BOSS TU-3 Chromatic Tuner Pedal is the industry-standard stage tuner featuring a bright 21-segment LED meter with a high-brightness mode for outdoor visibility. It supports chromatic, guitar, and bass tuning modes, including 7-string and 6-string instruments, plus flat tuning up to 6 semitones. Built tough in a stompbox design, it offers precise, reliable tuning for professional musicians on any stage.

## Description

The world’s top-selling stage tuner, the BOSS TU-2, evolves and improves with the debut of the new TU-3. Housed in a tank-tough BOSS stompbox body, the TU-3 features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare. Choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function. The TU-3 incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-string basses, while the Flat-Tuning mode can support up to six half-steps. It’s the new-standard tuner that no guitarist or bass player should be without!. Note: Leaving the cable plugged into the input jack when not in use, this means the TU-3 is on constantly and will drain the battery in a short time.

Review: Parfait ! - Article reçu rapidement, bien emballé et en parfait état. L’accordeur BOSS TU-3 permet d’accorder parfaitement et très rapidement mes guitares. Il est facile à utiliser, aucun problème. Attention à la batterie fournie avec cet accordeur, elle permet seulement de bien l’essayer, donc elle sera à remplacer rapidement. Si non, tout est parfait !
Review: Qualité boss - Rien à redire sur cette pédale c'est du costaud et ça fait le taf qu'on lui demande c'est-à-dire accorder sa guitare ou sa basse, plusieurs modes disponibles et surtout on peut accorder sa guitare jusqu'à 6 demi-ton en dessous, comme toutes les pédales boss ça marche sur secteur ou sur pile 9 volts, achat indispensable sur son pédalboard. Il y avait un truc à redire je dirais que le vu mètre est un poil trop tatillon.

## Features

- Guitar and Bass Tuner Pedal with High-Brightness Mode for Outdoor Visibility, 21-segment LED Meter, Drop Tuning Support, and Guitar/Bass Mode
- Stompbox-style guitar tuner pedal21-segment LED meter with brightness controlHigh-brightness mode enhances meter visibility outdoorsAccu-Pitch sign function provides visual verification when tuning is complete
- Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses)Flat tuning is supported with Guitar Flat mode, which allows for Drop tunings up to 6 semitones below standard pitch
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004D8KX7K |
| Amperage | 85 Milliamps |
| Audio Output Effects | Distortion, Chorus |
| Brand | BOSS |
| Brand Name | BOSS |
| Color | White |
| Colour | White |
| Controls Type | Knob |
| Customer Reviews | 4.7 out of 5 stars 2,264 Reviews |
| Global Trade Identification Number | 00700315930183, 00761294409664, 04957054409661 |
| Hardware Interface | USB |
| Included Components | Todo |
| Item Dimensions L x W x H | 25.4L x 10.2W x 25.4H centimeters |
| Item Type Name | TU-3 |
| Item Weight | 390 Grams |
| Item height | 6 inches |
| Item weight | 390 Grams |
| Manufacturer | Roland |
| Power Source | Battery Powered |
| Product dimensions | 25.4L x 10.2W x 25.4H centimeters |
| Signal Format | Analog |
| Style | TU-3 |
| UPC | 700315930183 065491929964 270050113276 761294409664 714573528174 411378170163 714573526569 600599646742 602003603693 783627010866 |
| Unit Count | 1 Count |
| Voltage | 9 Volts |

## Product Details

- **Brand:** BOSS
- **Style:** TU-3
- **Colour:** White
- **Product dimensions:** 25.4L x 10.2W x 25.4H centimeters
- **Item weight:** 390 Grams

## Images

![TU-3 Chromatic Tuner Pedal - Image 1](https://m.media-amazon.com/images/I/71jZx+rFzuL.jpg)

## Questions & Answers

**Q: can this tune a saxophone??**
A: Saxophones absolutely need to be tuned every time you take off the mouth piece or with temperature changes such as going from indoors to outdoors on a cold night (marching band).  Tuning is done by shortening or lengthening the distance an the neck of the sax by moving the mouthpiece in or out.  This tuner could be used to tune a saxophone if you have a cheap mic that has a 1/4".  That said there are less expensive tuners with built in mics that would better suit your purpose.  

Please note though that no matter what tuner you buy, if it is set to concert pitch (440Hz A / piano tuning) you will want to transpose the notes from Bb (tenor) or Eb (alto) to concert pitch when tuning your saxophone.  In other words when you play a C on a tenor saxophone it is a Bb in concert pitch.  For alto a C is an Eb in concert pitch.  There are some very expensive turners that you can change the tuning from concert pitch to other pitches but they are a waste of money since transposing is not difficult.  Make a chart or download one if you struggle at first.  Remember that your sax could be sharp on some notes and flat on others so check multiple notes and find the tuning where the most notes are in tune and those that are not are just a little sharp or a little flat.

**Q: How does the TU-3 effect a fuzz face if it's placed a couple pedals away after the fuzz ? I assume it has a buffer like most Boss pedals.**
A: It is buffered, but the buffer won't affect anything that comes before it. Since certain fuzzes don't "like" buffers, putting those before the tuner will work fine.

Guitar > Fuzz Face > Tuner ( or any buffered pedal) > Amp

**Q: Is this product adequte for a 10 string  pedal steel guitar ? I was told to get a tuner that shows the frequency and I do not see a # on the  display**
A: This won't show the frequency in Hertz, but it will indicate pitch, and the 10 string pedal steel should be in its range. There is a dot on the display to indicate a sharp.

**Q: Will this work when only plugging the input?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Parfait !
*by H***S on 12 October 2025*

Article reçu rapidement, bien emballé et en parfait état. L’accordeur BOSS TU-3 permet d’accorder parfaitement et très rapidement mes guitares. Il est facile à utiliser, aucun problème. Attention à la batterie fournie avec cet accordeur, elle permet seulement de bien l’essayer, donc elle sera à remplacer rapidement. Si non, tout est parfait !

### ⭐⭐⭐⭐⭐ Qualité boss
*by C***E on 5 February 2025*

Rien à redire sur cette pédale c'est du costaud et ça fait le taf qu'on lui demande c'est-à-dire accorder sa guitare ou sa basse, plusieurs modes disponibles et surtout on peut accorder sa guitare jusqu'à 6 demi-ton en dessous, comme toutes les pédales boss ça marche sur secteur ou sur pile 9 volts, achat indispensable sur son pédalboard. Il y avait un truc à redire je dirais que le vu mètre est un poil trop tatillon.

### ⭐⭐⭐⭐⭐ The only tuner pedal you need + it will last a lifetime!!
*by K***Y on 11 September 2015*

The only tuner pedal you need + it will last a lifetime!!

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-05*