Detail 01
440Hz, keyed to A
Concert-pitch standard. On guitar it matches the 5th fret of the low E, or the open A string an octave down.

Independent shopping perspective
A pitch reference that needs no batteries and never drifts. For players tuning by ear, and for anyone who wants a fixed A440 to check gear against.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Concert-pitch standard. On guitar it matches the 5th fret of the low E, or the open A string an octave down.
Detail 02
Steel holds its frequency across years and temperature swings. Plating resists rust from hand sweat and case humidity.
Detail 03
Gives you a grip that won't damp the tines, so the tone rings longer before dying out.
Detail 04
Identifies the pitch at a glance if you keep more than one fork in the same bag.
Detail 05
One pitch only. You tune the A and then tune every other string by ear from it.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Strike it, press the handle against the guitar body or headstock so the wood amplifies it, then tune your open A string until the beating between the two pitches disappears.
Yes. It gives you A440; tune your bass A string to the pitch two octaves below it, or match harmonics.
No. The pitch comes from the steel's physical dimensions, so it stays at 440Hz indefinitely unless a tine gets bent or dented.
It needs no battery, cannot lose calibration, and trains your ear. A clip-on is faster and easier in a noisy room.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.