XYZ Computing take a look at the Seasonic Power Angel Power Monitor

... That's really all there is to this unit. It does not come with anything except for the Power Angel and instructions. Even the instructions are very basic. All you have to do to use this product is plug it into any wall outlet (in USA or Canada) and then plug a product into it. The PA does not even need batteries- it operates off of the power from the wall.

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