Pyramid Automation - Have a look at Iskra Energy Analyzer Series: The meter records TRMS values with the Build-in Microprocessor which is recording according to the principles of fast sampling of Voltages
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Domoticz Raspberry DSMR Dutch FTDI UART RJ11 RJ12 for Kaifa Iskra Kamstrup Sagemcom P1 Smart Meter USB Cable _ - AliExpress Mobile
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