Carry-on CO-CT-1BK - Chromatic Clip-On Tuner with Adjustable LCD Display (Black)

Carry-on CO-CT-1BK - Chromatic Clip-On Tuner with Adjustable LCD Display (Black)

The Carry-on CO-CT -1BK is a compact, reliable, and easy-to-read clip-on tuner for guitar, bass, and ukulele, including chromatic use. It features a 18x22mm LCD display with a rotating head for improved visibility at any angle and a color backlight system that indicates the note status: orange for low/high and green for exact tuning. The rubberized clip ensures a secure grip and protects your instrument's finish, and the foldable design allows for space-saving storage. It offers ±1 cent accuracy , an A0–C8 (27.5–4186 Hz) detection range , and a fixed A4 reference at 440 Hz for consistent results. It runs on a 3V CR2032 battery (included) and remembers the last mode used upon power up. Color: Black.

Main features

• Tuning modes : Chromatic, Guitar, Bass and Ukulele (C).
• Display : 18×22mm color LCD with swivel head for clear reading.
• Visual indicators : orange (low/high) and green (tuned) backlighting.
• Accuracy : ±1 cent.
• Range : A0 (27.5 Hz) – C8 (4186 Hz).
• Reference : A4 = 440 Hz (fixed, no calibration).
• Internal memory : remembers the last mode after power off/on.
• Detection : by vibration using a clip.
• Construction : clip with protective rubber and foldable design .
• Power supply : 1 × CR2032 lithium battery (3 V), included.
• Dimensions : 48 × 30 × 38 mm (L × W × H).
• Color : Black.

Product benefits

• Faster, more accurate tuning – The combination of ±1 cent accuracy, A0–C8 range, and color coding speeds up the process in rehearsal or live performance.
• Comfortable reading in any position : high-contrast, tiltable display for low-light situations or awkward angles.
• Simple operation : dedicated modes and memory of the last mode so you don't have to reconfigure each time.
• Instrument protection : rubber clip that prevents scratches and slipping.

Use cases

• Rehearsals and concerts : stable fixation on the headstock and instant reading between songs.
• Lessons and daily practice : instrument modes and clear visual feedback for students.
• Study and composition : A0–C8 coverage to verify both bass lines and high passages.

Frequently Asked Questions

• Can the A4 reference be calibrated? No. The reference is fixed at 440 Hz.
• Does it have an auto-off feature? It doesn't have an auto-off feature.
• Does it work for violin? It doesn't have a dedicated mode, but you can tune in chromatic mode .
• Is it rechargeable? No. It runs on a 3V CR2032 battery (included).

Box contents

• Carry-on tuner CO-CT-1BK (black)
• CR2032 lithium battery (installed)
• User Manual

Description for projects

Chromatic clip-on tuner; modes: Chromatic, Guitar, Bass, Ukulele (C); accuracy ±1 cent; range A0–C8 (27.5–4186 Hz); reference A4 = 440 Hz (fixed); 18 × 22 mm LCD display with rotating head and color indication; clip detection; power supply 3 V CR2032 (included); dimensions 48 × 30 × 38 mm; foldable design; color black.