This is the standard tuning device for general-purpose use. It is easy to use and has a large pointer and internal speaker.  This is the tuner for equal temperament and it features a number of  historic unequal temperaments.

Tuning spectrum: 27.5Hz – 4186Hz
Adjustment of standard pitch: 349 – 499 Hz
Range: 5 octaves

Size/weight   74 x 120 x 36 mm,  193g  excl. batteries

Accessories    2 micro batteries,  intern microphone, bag