It's very simple. The clip on the left of the picture rotates so that you can clip it to the head of the uke by the tuning pegs, and once it's attached you move it so that it faces you as you tune your instrument.
By TheMightyBuch on 18 December 2014
This Tuner supports both the "C"(GCEA) and"D" tunings of the Tenor Ukelele at the flick of a small switch. I have found it very useful - especially when the strings are new. It is easy to use and great value for money.
By I.M.Fair on 15 January 2015