Comparisons

These two are not the same kind of product, and the honest comparison starts there. Shelly EM is a finished, certified device you wire in and it works. rbAmp is a metering front-end module — you add c...

rbAmp vs PZEM-004T: which AC energy monitor should you build with? The PZEM-004T is the default first energy meter for a reason — it's a few dollars, it works, and half the tutorials on the internet u...