The BOSS TU-3S is a remarkable stompbox tuner that has become a global favorite. It offers the same top - notch industry - standard performance as the renowned TU - 3 but in a much smaller size. This compact design saves a ton of precious pedalboard space. The TU - 3S is always on and ready for action, making it a perfect match for pedal switching systems like the BOSS ES - 8 and ES - 5, and a great choice when space is limited. Key features include high - quality tuning in a compact form, a 21 - segment LED meter with brightness control, a High Brightness mode for better outdoor visibility, an Accu - Pitch Sign function for easy tuning verification, Chromatic and Guitar/Bass modes supporting 7 - string guitars and 6 - string basses, and a Guitar Flat mode for 'drop' tunings. It can be powered by an optional PSA - series adapter and has a DC Out jack to power up to seven BOSS compact effect pedals via an optional PCS - 20A daisy - chain cable. Specifications: Dimensions are 73 mm / 2 - 7/8' W X 84 mm / 3 - 5/16' D X 56 mm / 2 - 1/4' H, and it weighs 220 g / 8 oz including the battery. Accessories come with an Owner's Manual, Leaflet, Parallel DC code, and Rubber foot.
Using the BOSS TU - 3S is a breeze. First, power it up. You can use an optional PSA - series adapter. If you have other BOSS compact effect pedals, you can power them through the DC Out jack with an optional PCS - 20A daisy - chain cable. Once it's on, choose the appropriate mode like Chromatic, Guitar/Bass, or Guitar Flat depending on your instrument and tuning needs. When tuning, watch the 21 - segment LED meter. You can adjust its brightness to suit your environment, and use the High Brightness mode outdoors. The Accu - Pitch Sign function will let you know when you're in tune. As for maintenance, keep it clean and dry. Avoid exposing it to extreme temperatures or humidity. If you're using batteries, replace them regularly to ensure stable performance. Always refer to the Owner's Manual for detailed safety instructions and important notes.
