The GoGo Chromatic Pedal Tuner offers a streamlined, no-nonsense pedalboard necessity that's built for years of consistent, reliable use. Able to chromatically tune within plus/minus 0.5% accuracy, the bright LCD screen displays in red when you're out of tune and green when you're in tune for no mistakes. Housed within a roughneck metal chassis at a price everyone can get behind, this is a great frontline effect or secondary standby.