I heard about a new headstock tuner and just got an opportunity to try one yesterday. Wow… it’s so easy to use. It just clips on the head of you guitar and can tell what the note is by the vibration of your guitar.
These also work for pretty much any stringed instrument. It’s a chromatic tuner, meaning it can sense any note of the scale. It also has an option to tune to other pitches besides the standard 440. Another feature I really like is that the tuner doesn’t flucuate like most of the regular guitar tuners.
Since it tunes by vibrations, it doesn’t matter how noisy the room is or even how dark. There is a backlight to see it clearly in any lighting. You can get these from your local music store and I’ve also picked up some for the website. It’s at the bottom of the main products page here. Headstock Chromatic Guitar Tuner