Product Overview
A simple, reliable clip-on tuner for everyday use. The Octopus OC-440 attaches directly to your instrument and uses vibration sensing to deliver quick, accurate tuning without being thrown off by background noise. The clear LCD display rotates for easy viewing on stage, in rehearsal, or at home.
Key Features
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Clip-on, vibration-sensing tuning — works accurately in noisy rooms
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Bright LCD display with easy-to-read needle and pitch info
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Rotating display for left/right orientation on headstocks or joints
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Chromatic mode — suitable for guitar, bass, ukulele, violin, woodwind, and more
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A4 reference adjustable (typical 430–450 Hz range)
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Auto power-off to preserve battery life
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Compact and lightweight with soft, protective clamp pads
Why Choose
The OC-440 keeps tuning fast and fuss-free: clip, pluck, tune. Vibration sensing means you get an accurate reading even when the room is loud, while the rotating screen lets you position the display exactly where you need it.
Specifications
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Model: OC-440
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Type: Clip-on chromatic tuner
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Detection: Piezo vibration sensor
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Display: LCD, rotatable
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Pitch reference: Adjustable A4 (approx. 430–450 Hz)
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Power: Coin cell battery (included/required)
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Clamp: Soft-lined jaws for instrument protection