Description
The BOSS TU-3 is the world’s go-to pedal tuner, trusted by players around the world for reliable operation and bulletproof durability. Small in size, the TU-3S gives you the same industry standard performance in a small footprint that saves valuable bottom bracket space. The display and tuning functions are identical to those of the TU-3 - the only thing eliminated is the foot switch. Always on and ready to go, the TU-3S is perfect for use with pedal switching systems like the BOSS ES-8 and ES-5, and ideal for any setup where space is at a premium.

Respected TU-3 tuning performance in a more compact size
21-segment LED counter with brightness control
High brightness mode improves visibility of the meter outdoors
Accu-Pitch Sign feature provides visual verification when tuning is complete
Chromatic and Guitar / Bass modes, with support for 7-string guitars and 6-string basses
Guitar Flat mode supports drop tunings up to six semitones below standard pitch
Powered by optional PSA serial adapter; DC output jack for powering up to seven BOSS compact effects pedals via optional PCS-20A daisy chain cable
Five-year BOSS warranty