In a prior thread, about a month ago, someone here put up the URL for the same Voltmeter as the RIGHT HAND one on the Powerwerx site: 13.8V in BLUE TEXT but,
I bought a $5 cig socket voltage meter off Amazon and it works fine (except see next comment). My cig socket is plugged into the heated grip adapter up front and the difference at the battery terminals is only 0.2V so it seems accurate enough. It generally runs 13.8-14V once over 3K RPM so all is well.That Powerwerx logo adds $15 to a voltmeter, cause you can buy those all day long for about $5. I have one on my Wee, works great...tested against a Fluke meter at the terminals and it's been dead nuts on, accuracy wise.
Mine is red too and impossible to see in sunlight. Fortunately, its not something I really need to monitor continuously so I think its okay. Right now its in my cig socket on the handle bars but I want to free that up to charge my GPS. I'm going to get a H4 male headlight socket and solder and shrink wrap a wired connection and use the spare headlight connector freed up from the EB headlight relay. I'm going to probably zip tie it behind the ignition switch down in the hole were it will be dark enough to read anytime I get the urge and out of the way.I purchased a RED LED voltmeter and it is very hard to see.
easily remedied by where you mount it, my volt meter is recessed below the instrument cluster, always in the shade even if the bike is notI've been telling folks for a couple of years now that you can't read the output on these in direct sunlight.
I have a voltage meter with red LED numbers from ADVmonster. Like all these, it's impossible to read in sunlight, so I mounted it down inside the fairing in a nice shady spot. I can see it easily while riding, and if a stray sunbeam does make it down there, it's easy to block for a second with one hand.I've been telling folks for a couple of years now that you can't read the output on these in direct sunlight. They are OK at dusk and at night or if you pull over to a shaded area.