Great tuners for pedal steel, dobro, lap steel, and even "normal" guitar!

Great tuner that"s enchanced by a great metronome.

PRO:
I'm still learning the device, but "right out of the box" I used this on the Upright Stretch sweetener to tune an inexpensive 1970's upright piano. I've used a pocket chromatic tuner on several pianos previous to this with acceptable results, but this was waaaaaay easier to use. Cut tuning time in half. It locks on very fast, basically "real time," so I can get a reading at the part of the sound envelop I need.

If I can get it to show the 1/10 cents +/- for a given note I'll be even happier. I suspect there is a way.

The buyer experience was awesome, right down to the intro video on the website. Downloading software was a snap. The tuner cost less than my tuning wrench, so I can't complain there.

CON:
Unfortunately, using the mic, at least, it stops tuning (strobe disks turn off) too soon for the upper octaves, but I can at least get to C6, and I'll try the vibe pickup clipped somewhere next time, or an external mic, perhaps? The disks don't exactly "spin" like I would have sus ...

The StroboPLUS HD is a dream come true for the violinist!

The StroboPLUS HD tuner is so valuable for young violinists and for professionals, that The Romantic School of Music has already started production of a completely unsolicited video lesson featuring it.
Yes, it's great for so many instruments, but for those not familiar with the "sweetened" tuning mode; IT IS SO WORTH IT, and it makes Peterson the only portable tuner that can tune a violin to the proper accuracy in perfect 5ths. Others claim it, but this one actually does it. It's also a MUST for anyone learning to play the violin, as well as other an un-fretted instruments.
This tuner is fast, and accurate enough in automatic detection mode that it can be placed on a music stand and used to critique every single note, on the fly, while playing scales and arpeggios, even while using vibrato: including most notes while practicing a concerto at full speed! I don't know if Peterson had this in mind when designing this tuner, but ...