- Tuning Range: C0 (16.35 Hz) -- C8 (4,186 Hz)
- Reference Pitch: A4 = 436 -- 445 Hz (1 Hz step)
- Tuning Accuracy: +/- 1 cent
Modes:- Chromatic
- Chromatic flat x2
- Guitar
- Guitar flat x2
- Bass
- Bass flat x3
Display Mode:- Cent mode
- Stream mode
Power Supply:- Alkaline battery (9V, 6LR61) or Carbon-zinc battery (9V, 6F22)
- AC adaptor (sold separately)
- Bypass: Buffered bypass or True bypass
Controls:- Pedal switch
- OUTPUT switch (BUF/THRU SW)
- MODE button
- STREAM/CENT button
- Nominal Input Level: -20 dBu
- Input Impedance:1 M ohm
- Nominal Output Level: -20 dBu
- Output Impedance: 1 k ohm
- Recommended Load Impedance 10 k ohms or greater
- Indicator: CHECK indicator (Serves also as battery check indicator)
Connectors:- INPUT jack
- OUTPUT jack
- DC IN jack
- DC OUT jack


Current Draw:- 60 mA (DC 9 V)
- 110 mA (DC 9 V, when High Brightness mode is on)
Expected battery life:- Alkaline: Approx. 6 hours
- Carbon: Approx. 0.5 hours
Accessories:- Owner's Manual
- Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
- Alkaline battery (9V, 6LR61)
Options (sold separately)- AC adaptor: PSA series
- Parallel DC cord: PCS-20A (DC Plug x8)
Size and Weight:- Width: 73 mm, 2 7/8"
- Depth: 129 mm, 5 1/8"
- Height: 59 mm, 2 3/8"
- Weight (including battery) 460 g, 1 lb 1 oz
- Dimensions and Weight in Packaging
- Base Item
-
Shipping Weight: 1.25 lbs
-
Shipping Dimensions: 6 x 4 x 3 in
-
Manufacturer Part Number (MPN): TU-3W