![](https://d33wubrfki0l68.cloudfront.net/edc5b9e82dc135e07a1a85a1c6434e928e573b16/80e07/post/hlw8012-ic-new-sonoff-pow/images/hlw8012.jpg)
The HLW8012 IC in the new Sonoff POW
The HLW8012 is single phase energy monitor chip by the chinese manufacturer HLW Technology. It features** RMS current**, **RMS voltage** sampling and **RMS active power** with an internal clock and a PWM interface in a SOP-8 package. You can buy it at Aliexpress for less than a euro a piece and the necessary components are fairly easy to source and quite cheap. All in all it looks like a great IC to include power monitoring in your projects....