Boss TU-3 chromatic tuner pedal

Boss have taken their best selling tuner and improved it. It is housed in an extremely tough casing, which will take all kinds of gigging punishment. You can choose from either guitar or bass tuning modes which include up to 6-string bass and 7-string guitar tuning respectively.

It has 21 LED lights with brightness control, so you can tune in any light. Flat tuning is supported with Guitar Flat mode, which allows for “drop” tunings up to six semitones below standard pitch.

Features include:

• 21-segment LED meter with brightness control


• High-Brightness mode enhances meter visibility outdoors


• Accurate to +/- one cent


• Accu-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 six semitones below standard pitch


• Tuner automatically mutes when the tuner is on


• Supplies power for up to seven BOSS compact effect pedals


• BOSS five-year warranty