CONTACT AUTOTUNER - HANDS ON #AX-2000 
Calibrate Button
You can recalibrate your AX Tuner to match the pitch of any reference instrument simply by touching the calibrate ("C") button.

EXAMPLE: If you wish to tune a guitar so it will be in tune with a certain piano, place the tuner on the piano, defeat the two minute power down timer, play an "A" (or any other note) and wait a moment for the note to register on the tuner's display. The "A" LED will turn green, indicating that the tuner now considers the piano to be in perfect tune. Now you can tune your guitar and it will be in tune with the piano.
 
Calibrate Button
 
13301 NW US Highway 441 • Alachua, Florida • 32615 • USA • Voice  (386)  418-2000  • Fax  (386)  418-2001
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