can this tune a saxophone??

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.

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.

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

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

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.

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🎶 Tune like a pro, shine like a star – never miss a beat with BOSS TU-3!

RUGGED METAL BUILD - Durable stompbox design built to withstand the rigors of gigging and practice.
DROP TUNING MADE EASY - Supports flat tuning up to 6 semitones below standard pitch for modern playing styles.
TUNE ANYWHERE ANYTIME - High-brightness LED meter ensures perfect tuning even under direct sunlight.
ACCU PITCH VISUAL CONFIRMATION - Get instant, precise feedback when your instrument is perfectly in tune.
VERSATILE CHROMATIC INSTRUMENT MODES - Switch seamlessly between guitar and bass tuning, including 7-string guitars and 6-string basses.

The BOSS TU-3 Chromatic Guitar Tuner Pedal is a professional-grade stompbox tuner featuring a high-brightness 21-segment LED meter for clear visibility outdoors. It supports chromatic tuning, guitar and bass modes, including 7-string guitars and 6-string basses, plus drop tuning up to 6 semitones. Built with a rugged metal body and powered by a 9V battery, it delivers precise, reliable tuning with Accu-Pitch visual confirmation, making it an essential tool for serious musicians.

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Product Dimensions	15.24 x 9.78 x 6.73 cm; 390 g
Batteries	1 D batteries required.
Item model number	TU3
Body Material	Metal
Colour	White
Connector	6.35mm audio jack
Hardware Interface	USB
Signal Format	Analog
Material Type	Metal
Region of Origin	Asia
Country Produced In	Taiwan
Size	(TU-3)
Battery Type	Alkaline
Power Source	Battery Powered
Voltage	9 Volts
Item Weight	390 g

BOSS Tu-3 Chromatic Guitar Tuner Pedal

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