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John___Angela's avatar
John___Angela
Explorer
Oct 07, 2015

Looking for a "KILL A WATT" meter but for 220 volt 50 amp.

As per the title, we are looking for something like the "kill a watt" meter that plug into a standard 50 amp 220 volt RV plug. This is so we can monitor the amount of charge current our electric car ...
CA_Traveler's avatar
CA_Traveler
Explorer III
Oct 07, 2015
I'm reasonably sure you won't find a device with a 50A RV plug since that is not what EV car chargers use. The DrewE link gives you everything you want - voltage, amps, watts and watt hours. Looks like a easy DIY project. It is indoor rated.

You could consider this and perhaps add the DrewE device inside along an adapter for the incoming AC power to a 50A RV plug. In addition to adding a number of safety features it is outdoor rated. Although $$ it would have some resale down the road.

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