Not sure if this has been posted but it seems like a small enough unit.
Votl&Amp1 (http://www.miniinthebox.com/12-24v-digital-led-red-light-indicator-current-ammeter-voltage-meter-panel-plug-socket-for-auto-car-motorcycle_p4252337.html)
Volt&Amp2 (http://www.miniinthebox.com/high-quality-digital-led-red-light-indicator-ammeter-for-12-24v-auto-car-motorcycle-measuring-panel-plug-socket_p4252340.html)
I have one that size. It fits perfectly.
I've got one on the way, expected in a week or two. I will need to decide on what Amps draw on the bike I want to measure. They are limited to 10A. Ideas?
Preferably I'd have an ammeter like my old Smiths, rated for total system Amps with + and - current to see if the battery is charging or discharging.
I have the number one posted. I mounted it in the little "glove box".
Jeff