Check the listing for details. D'Addario Chromatic Pedal Tuner Plus Signal Buffer Set Timer PW-CT-23. Condition: New. Listed at 129.99 USD. The D’Addario Pedal Tuner Plus boasts the speed and accuracy of our original Pedal Tuner, plus two new features. First, it has a high-quality signal buffer, to maintain your sound across long cable runs and prevent signal loss through your effects chain. Second, it includes a programmable countdown timer to keep track of your set or session time. All of that combines to make a standout multipurpose pedalboard tool — keeping you in tune and on time.