RockBoard ST-01 StageTuner - Chromatic Guitar Tuner Pedal (ST01)

The true bypass does not affect your guitar's tone at all and its two outputs allow for either silent or audible tuning. The ST-01's reference frequency can be changed in 1 Hz steps from 432 to 445 Hz with a tuning range from 27,5 Hz (A0) to 4.186 kHz (C8) accuratly down to 1 Cent. It also feature a handy detuning function, which lets you drop your tuning by 1, 2 or 3 semi-tones. All this, combined with the StageTuner ST-01's compact metal housing makes it the optimal companion you will not want to miss on your (RockBoard) pedalboard. Specifications pedal tuner for electric instruments chromatic true bypass 28 segment (FND) & LED display separate output for audible tuning tuning range A0 (27,5 Hz) - C8 (4186 Hz) reference frequency 432 - 445 Hz (in 1 Hz steps) detuning function with 3 settings (b / bb / bbb) precision +/- 1 Cent metal housing power supply via included 9V battery or optional 9V DC power adapter (RockBoard Power Ace), polarity (-) center, 2.1 x 5.5 mm barrel plug current draw max. 22 mA dimensions (W x L x H): 73 x 110 x 47 mm / 2 7/8 x 4 5/16 x 3 15/16 weight 300 g / 0.66 lbs. (incl. battery)