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New sonoff Energy(volt & Amps) monitoring only - without switch function

There is some switches in sonoff like Pow R2, Sonoff s31 etc... which has energy monitoring function along with switch (ON or OFF) function. Every of these switches supports max 10 - 16amps only. In the place where we use contactor or relay to control heavy loads (for safety concerns) the function of power monitoring like in the above mentioned switches go useless. 


So, Better built a "sonoff energy meter"(voltmeter & ammeter) separately without having a switch function(on or off). 



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