When comparing Voltcraft SEM-5000 PRO vs Smart meter with SML interface + Raspberry Pi, the Slant community recommends Voltcraft SEM-5000 PRO for most people. In the question“What is the best whole house electricity monitors?” Voltcraft SEM-5000 PRO is ranked 4th while Smart meter with SML interface + Raspberry Pi is ranked 5th. The most important reason people chose Voltcraft SEM-5000 PRO is:
It can be attached to a DIN rail (IEC/EN 60715).
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Pros
Pro DIN rail
It can be attached to a DIN rail (IEC/EN 60715).
Pro No cloud
It does not send any data home and is only accessible via webinteface.
Pro accurate data
it uses the same meter that your energy provider uses.
Pro cheap
you only need a raspberry pi and one IR sensor
Pro you need no electrician
you can do everything by yourself.
Cons
Con Slightly inaccurate
Measures apparent power (S).
Con needs some work
you have to follow tutorials but there are many available.