TC Electronic PolyTune 3 Polyphonic LED Guitar Tuner Pedal with Buffer | Sweetwater
Tools for the Task: Mini Pedal Tuners - Premier Guitar
Amazon.com: D'Addario Guitar Tuner Pedal - Chromatic Tuner for Electric Guitars, Bass Guitars and More - Rugged Aluminum Enclosure - Fast and Accurate - True Bypass with Full Color Display : Musical Instruments