A reliable tuner that you attach to the sound hole of your instrument.
The Rimpitch-C2, a tuner designed specifically for acoustic guitar.
The Rimpitch-C2 is a tuner that you attach to the inside of the guitar's sound hole. The tuner’s extremely slim and compact design allows it to be installed unobtrusively, and since the tuning meter is within your natural field of vision, you can glance casually at the tuning meter while you perform. It's an ideal choice for any acoustic guitarist who does not want to distract from their performance with a clip-on tuner.

Specifications

• Scale: 12 note equal temperament
• Range (Sine Wave): E2 (82.41Hz)–E7 (2637.02Hz)
• Precision: ±1 cent
• Calibration Range: A = 438–445Hz (1 Hz steps)
• Dimensions (W x D x H): 79 ✕ 32 ✕ 17 mm / 3.11" x 1.26" x 0.67"
• Weight: 13g / 0.46 oz. (including batteries)
• Battery Life: Approximately 36 hours (A4 continuous input)
• Installable Size: Circular sound hole of diameter 100 mm ±3 mm
• Included Items: CR1620 lithium battery (3V) x 1 (for verifying operation)