Tuner doesn´t work correct

Never had that problem. And when you look at the intonation, what do you have?

Are you tuning to the pitch of the sustained note as it dies out, or to the initial attack?

I think the Kemper Tuner is designed for the initial pitch, but your other tuners may be looking at it a different way.

And it does matter how you play if you tune to attack or the sustain/decay note.

I have always found the Kemper tuner to be spot on accurate. I have checked the results against several other tuners and confirmed this. If the tuning is only out on certain strings it does sound like and intonation issue on the guitar or, as others have said, the you are striking the strings when tuning. I use the Strobe Mode and pick constant even notes tuning to the start of the note rather than the decay.

Quote from Wheresthedug

I have always found the Kemper tuner to be spot on accurate. I have checked the results against several other tuners and confirmed this. If the tuning is only out on certain strings it does sound like and intonation issue on the guitar or, as others have said, the you are striking the strings when tuning. I use the Strobe Mode and pick constant even notes tuning to the start of the note rather than the decay.

In the past the tuner was something like 1-3 cents wrong until they updated the tuner and it was spot on when I compared to the tc polytune 2 I had. After that I sold it.

yeh if you have it selected on tuner mode, use the bottom left knob under the display screen (where is says 'reference pitch') make sure it says A=440Hz

mine accidentally got shifted and it was driving me crazy till I worked it out!