Works on a violin, too!
This clip style tuner works on a full size violin, and I assume on the larger members of the violin family. Clip it to the bridge next to the G-string (there is just enough room to do that), and you are set to tune. You don't have to pluck very loudly...a barely audible tone will activate the tuner. So, you can tune in a noisy environment and not even have to hear the note to know it's right on.

GREAT value tuner!
I bought this for my son last Christmas so he has been using it for seven months now and he still loves it. (He has three years experience playing guitar) Any way, like others have said this tuner picks up the vibration of the string instead of the audio from a microphone like other tuners do. There is no interference from external sources as a result. The tuner is surprisingly small but very easy to read. No regrets with this purchase!

Intelli IMT500 Tuner
I was very pleased to find this worked on my electric guitar in addition to my acoustic. Extremely easy to use, just clamp it on and turn it on. Tuning is excellent. This is so much easier to use than my old Korg GA30 which required you to plug your electric guitar into the tuner or hold it in front of your acoustic.

Intelli IMT500
In 20+ years of playing I have never used a tuner and so I was a little concerned about buying this as I had thought I would go for an in-line floor tuner. The situation was that this was readily available to me and so I thought I would give it a go. I am not sorry I did either. I was on tour in the UK and found this very helpful. There are a couple of concerns - already mentioned in previous reviews - the bottom E doesn't always give a reading but this is easily overcome with harmonic of said string. The A seemed to give me a reading of E even though it was an A - didn't find this a problem once I knew what it was doing. I guess I am a little concerned about the robustness of it on regular touring.

I found it responsive and easy to read in dimmed light. I use different tunings and found this, together with my ear, an invaluable device especially for that F# in an open D tuning. Overall, on stage it made for quicker retunings and offered me that little extra confidence that I was on mark. I have not used it to record and so cannot say how it fairs across instruments and sessions. However, on stage it proved its worth and I will be using it as regular as I play.

It is definitely worth trying - especially for the price.

Poor on low notes
Did not do a good job of picking up low notes. When tuning you had to wait until the note stopped completely before trying again:
Returned item for a refund.