I have obtained a device which reads Volts,Watts,Amps,and kWH which enables
me to find out what a particular device uses in the way of electric power.
My main use is in finding out how much my water pump uses which pumps water
from a near source to my house. The pump is controlled by a pressure switch
which only operates when a tap is opened and the pressure falls.
What I want to know is how I relate this kWH reading to Units used which my
electricity bill shows.?