D'addario CT-15 NS Micro Soundhole Tuner
Specially designed for acoustic guitars, ukuleles and other acoustic instruments, the Micro chromatic rosette tuner is perfectly concealed in your instrument's rosette, allowing you to tune it discreetly.
The universal mounting clip allows easy installation without damaging the instrument, and the high-precision piezo transducer picks up vibrations directly from the soundboard for fast, accurate response during tuning.
The bright color display is easy to read in any environment. It's so compact, practical and accurate, you'll soon want one for every acoustic instrument you own!
Fast, accurate response.
Color display.
Tuning range: 410 to 480 Hz.
Designed for instruments with a maximum top thickness of 3.81 mm (0.15").
Euroguitar Reference : 70148