Multimeters are suitable for many purposes. But usually, they only measure one value at a time. If we deal with power or capacity measurements, we need two multimeters, one for volt and the second one for ampere. And if we want to measure efficiency, we need four multimeters. In earlier videos, I used small all-in-one meters for that purpose and got the request to show how I built them.
So today we will build small and cheap meters which measure volt, ampere, power and capacity at the same time. For around 15 dollars each.

Links:
3D Box: https://www.thingiverse.com/thing:278...
33V/3A Meter: http://s.click.aliexpress.com/e/J6yzrVz
or http://bit.ly/2HPZUXt
Banana plugs: http://s.click.aliexpress.com/e/7UVZr7Y
Switch: http://s.click.aliexpress.com/e/e6QjYVv
9V battery connector: http://s.click.aliexpress.com/e/bAqB6mi
Reamer: http://bit.ly/2HMfhzT
"Naked" Connectors: http://bit.ly/2HQ1uZp
Instructable: https://www.instructables.com/id/Vers...

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