The Rockboard StageTuner ST-01 has all the essential features that musicians look for in a chromatic pedal tuner.

The large and bright 28-segment LED display is readable even from meters away. The true bypass does not affect your guitar's tone at all.

The reference frequency of the ST-01 can be changed from 432 to 445 Hz with a tuning range from 27.5 Hz (A0) to 4,186 kHz (C8) with an accuracy of up to 1 cent.

Combined with the compact metal casing, it makes it the optimal companion for your pedalboard.

• Chromatic tuner
• True bypass
• Display: 28 segment (FND) & LED
• Separate output for on-stage tuning
• Tuning range: A0 (27.5 Hz) - C8 (4186 Hz)
• Reference frequency: 432 - 445 Hz (in 1 Hz steps)
• 3 Settings (B / BB / BBB)
• Accuracy +/- 1 cent
• Metal casing
• Power supply via 9V battery or 9V DC adapter (RockBoard Power Ace)
• Polarity (-) center, 2.1 x 5.5 mm (Power adapter not included)
• 22 mA
• Dimensions (L x W x H): 73 x 110 x 47 mm
• Weight: 300 g