Patent ID: 8638087

Claim:
A method for sensing AC current drain through a structured current sensor made of a low ohmic metal alloy by a load attached to an electrical device selected from a group comprising AC outlet, AC plug, AC current sensing unit and AC current sensing adaptor, each including said current sensor structured into a portion of at least one of a terminal selected from a group comprising a power pin, a power socket, AC terminal and a combination thereof for connecting and conducting the current drawn by said load through said terminal and said structured current sensor, said electrical device further comprising a CPU and a current signal amplifier for amplifying a voltage drop developing over said current sensor, said method comprising the steps of: a. attaching a load to said AC device; b. operating said load; c. feeding the voltage drop developing over said current sensor made of low ohmic metal alloy to said amplifier, d. amplifying said voltage drop signal; and e. feeding the amplified signal to said CPU for processing.