Sonoff POWR3 5500W Controller – It’s a Monster

Sonoff POWR3 5500W Controller – It’s a Monster

Back in 2019 I reviewed the Sonoff POWR2 unit – an upgraded mains controller which, as against typical power controllers which handle 10A MAX (good for lighting, not so good for heating controls such as immersion heaters), handles 15A MAX along with power monitoring...