Boss TU-3

• 21-segment LED meter with brightness control
• High-Brightness mode enhances meter visibility outdoors
• Accu-Pitch Sign function provides visual verification when tuning is complete
• Flat tuning is supported with Guitar Flat mode, which allows for “drop” tunings up to six semitones below standard pitch
• Signal is automatically muted when the tuner is on
• Supplies power for up to 7 BOSS compact effect pedals

Specifications

Tuning Range: C0 (16.35Hz)–C8 (4186Hz)
Reference Pitch: A4=436–445 Hz (1Hz step)
Tuning Accuracy: +/-1 cent

Power Supply
• DC 9 V: Dry battery 6F22 (9 V) type (carbon), Dry battery 6LR61 (9 V) type (alkaline)
• AC Adaptor (PSA series: optional)

Power Consumption: 30 mA (DC 9 V), 85 mA (DC 9 V, when High Brightness mode is on)

Accessories
• Dry battery/9 V type (6F22)
• Owner's Manual
• Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and “Information”)

Options
• AC adaptor: PSA series
• Parallel DC cord: PCS-20A

Size and Weight

Width: (W)73 mm 2-7/8 inches
Depth: (D)129 mm 5-1/8 inches
Height: (H)59 mm 2-3/8 inches
Weight: 390 g 0 lbs. 14 oz.