Our hacker [John Duffy] wrote in to let us know about a video he put together to explain the design of his open-source multimeter, the HydraMeter. If you’re interested in how the circuitry ...

Copper Mountain Technologies (CMT), is excited to introduce the 75 Ohm PE0312-75 Port Extender, which expands CMT’s product portfolio for 75 Ohm test solutions.

This paper describes the results from testing the accuracy of electric utility smart meters. The results compare the smart meter measurements of voltage and current waveforms of a fundamental 60 Hz ...