EMMELINE WATKINS / SCIENCE PHOTO LIBRARY EMMELINE WATKINS / SCIENCE PHOTO LIBRARY
Plug-in electricity meter. This energy meter (or monitor) indicates the cost of energy consumption. It also measures the voltage (V), amps (A), watts (W), volt-amps (VA), hertz (Hz) and power factor (PF) of electrical appliances.
Model release not required. Property release not required.