The Kala KC02 Black Clip On Tuner is extremely simple to use. Cycle the single button to: power on and then chose between chromatic, ukulele C, and ukulele D modes. Backlit screen indicates quickly and clearly when instrument is accurately tuned. Comes with battery and instruction manual.
Best Answer:Turn the tuner on, choose either the standard C tuning, or D tuning, clip it onto the headstock, and pluck the string you want to tune. When the note name is green, the string is in tune and you can move onto the next string. If the "needle" is off to the left of center, the string is flat and must be tightened. If the "needle" is off to the right, the string is sharp and must be loosened.
Please keep in mind that, as with all nylon strings, ukulele strings will have a settling in period before they will hold their intonation. You will have to tune the string, stretch it, then tune it again before you start playing the first time or two you pick it up.