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[* black] Extremely thick copper wires allow the meter to be wired in series with a household's main power supply and are capable of handling 200 Amps!
[* black] Interestingly, the meter relies on a black ring-shaped current transformer installed around the copper wires to send power consumption signals to the main board.
[* icon_note] [link|http://en.wikipedia.org/wiki/Transformer#Instrument_transformers|Current transformers] indirectly measure the current flowing through the thick copper conductors and provide an output that can be read by the electronics on the board.
[* black] SmallLong metal stripspressure contacts along the inside case of the Watthour Meter's conduct 240V AC electricity to pressure pads on the main board that provide its powerpower to the main board.
[* black] SmallLong metal stripspressure contacts along the inside case of the Watthour Meter's conduct 240V AC electricity to pressure pads on the main board that provide its powerpower to the main board.