feigao power anaylzer??

I use the Feigao Power analyzer and works fine.

In the left side has connectors for the battery, and shows info about volts.
The right side is for the ESC & motor and shows current, watts ...
It has a cable for the PC (com port) and you can see all that info in graphics and save it.

The matter is that you have to do it with the truck (or the ESC & motor system) on the hand and near the PC. Then it don't gives "real" running info.

The eagletree micro-power seems to be much better. It has memory and is very small and light so is possible to install it in the truck for getting much accurate and real info. Also is possible to add sensors for temperature and RPM.