I have this from my 250, but havent' put it on the Versys yet. Will surface mount it on the instrument panel cowling when I install the heated grips.
It is a Heads-Up Voltage Meter from Signal Dynamics
. I bought the single panel mount version.
I wired it to my auxillary fuse box, and works like a charm.
It is a tri-color LED. The colors are as follows.
Flashing Green - Over 15.25V
Steady Green - Above 12.9V
Steady Amber - Above 12.6V
Steady Red - Above 12.1V
Flashing Red - Below 12V
Here it is mounted on my bike (look close).
A close up so you can actually see it.
Here it is with the key on.
Finally a video to show it working. It flashes each color when power is first turned on to show they are all working. Then it goes to red, and when the bike starts flashes a quick amber then finally green (it doesn't change brightness in the middle, that was just my camera). When I shut it off it goes back down to red, and with the headlights left on starts flashing red.
Would be nice to make a water temp gauge that worked in a similar way. Maybe yellow until it reaches operating temp, then green for normal temp range, and red for overheating. I might have to talk to my electrical and computer engineering buddies to help me make one.