an electrical energy diversion measurement device includes a first clip - on transformer for location about the power cable at high elevation in the zone of the weather guard or at underground manhole location where power supply enters the consumer &# 39 ; s dwelling . a second clip - on transformer is simultaneously located about a cable passing through the watt power meter housing supplying power to the consumer . a digital measurement means is responsive to the current sensed by either the current transformers or simultaneously by the transformers and digitally displays the current of each or the difference between the sensed current as a representation of current difference and energy diversion .