Looks very handy at first glance but I'd be concerned about this unit's current draw just to operate it.
As usual with Chinese stuff it's hard to understand the specs but it says 0.4W power consumption. that's 33ma at 12v.
You'd need an isolator switch between the battery and the shunt to stop the unit flattening your battery when you're not using the van.
It's yet another thing drawing current from your battery.
you could either isolate the battery or keep it trickle charged when not in use.
Although it says wireless, it looks like it's got a cable with USB plugs on it between the units to provide power and communication with the display. so not truly wireless.
Yes, you'd mount the shunt between the battery and the fuse box, after the isolator if you've got one, no need to run thick cables into the cab, just the thin cable between the shunt and the display.
Just my 2P.
![Wink :wink:](./images/smilies/icon_wink.gif)
'86 1.9 DG, 4 spd, tintop, camper conversion.
Split case club member.