Korg OT120

This is my favorite studio/workshop tuner by far! Excellent for doing setups/intonation. The needle is much easier to work with than any LED or strobe tuners. The various modes makes it really flexible too. It works great both with mic and jack and responds very nicely to all instruments I've tried.

Of course this isn't a stomp box so it's not really suitable for a pedal board but for studio use or doing setups in a guitar workshop it is absolutely superb.

I've tried pretty much all of the most popular tuners and this one makes my job so much easier than the rest. Unlike certain hi-end strobe tuners it isn't TOO precise, just perfect.

The only con would be the display. The display fades out completely when looking at it from certain angles. It's not a huge problem but can be slightly annoying, particularly when using the tilt back legs and looking at the tuner from above. I really wish they had used a better display.

Apart from the display I have no complaints. I can honestly say I've never been happier with a tuner and it's not even particularly expensive.

Highly recommended!

I purchased this orchestral tuner to try tuning my upright piano. This Korg seemed to be the only option as I could find no alternative products in this class.
The reality is that the tuner presumably does its job reasonably well, although it does not detect sounds in the far bass and far treble octaves of the piano.
Also, I was quite utterly disappointed by the build quality of the device. It is made of cheap plastic and is very, very far from feeling "solid". All the switches and buttons are very wobbly and unpleasant to touch. Overall, it feels so much different from the sturdy construction of Korg's guitar tuner pedals.
Frankly speaking, it is a big disappointment.

Playing a 5 string, I wanted to find a tuner <£100 which would handle the lower frequencies, and had a good reputation.

Spot on, so far. It's picked up all the strings quickly and accurately (Tested this morning against online tuner/phone app/clip-on tuner/piano) and the features are useful and varied. The display is best viewed from within 5 feet, although the red lights indicating a 'lock' on the note are large and bright enough to be seen clearly from around 10 feet.

Only tiny niggle is the fact that it's a little bulky in-hand, though most of the time, most people probably won't be holding it when they use it.

The carrying pouch which is supplied with the tuner is pretty smart.

Happy with it.