I use the Peterson tuner and have one upstairs and one downstairs.  :) 

John, the Peterson clip-on is indeed a great tuner.  I just watched the NPR Little Desk concert with Billy Strings and his band, and they all had Peterson clip-ons on their instruments (well, except for the double bass player).

You don't have to set it up at all.  It is called a chromatic tuner because it can detect every note, not because you can only use it with a chromatic dulcimer.  Turn it on and pluck a string and it will detect the nearest note and tell you whether you are sharp or flat.  It may take a few minutes to figure out how to read the strobe, but rest assured you'll get it.

Word on the street is that the Peterson is the most accurate tuner on the market.  You made a good choice. 

--
Dusty T., Northern California
Site Moderator

As a musician, you have to keep one foot back in the past and one foot forward into the future.
-- Dizzy Gillespie

Howdy kids first I just wanted to say I hope everybody has or we'll have a good holiday day.

 I have a question about my new tuner its a Peterson clip-on. First, it's a super cool tuner. I highly recommend it. My question is how to set it up. One preset option is to set it up for standard tuning. It says standard tuning is for chromatic I know we have diatonic does it really matter as far as tuning goes. The other tuning set up that makes sense is the D.A.D Acoustic guitar mode D.A.D.G.A.D tuning with optimized fifths 

Anyone out there have one of these tuners and what is your suggestion