SONOFF SPM Main/4Relay Smart Stackable Power Meter SPM 20A/Gang Overload Protect
ab 41,98 €
Each channel can support maximum current of 20A, no fear of high power load. 20A/Gang】Each channel can support maximum current of 20A, no fear of high power load. One SPM-Main can pair with up to 32 SPM-4Relays.
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