Shelly Plus PM Mini

Setup took me under ten minutes, and the live wattage readout in the app already caught a power-hungry old fridge I’d forgotten about. At 16 amps it handles my space heater with zero hiccups, and the size is just a bonus for how much control it gives.

It's genuinely tiny — I barely noticed it behind my outlet — but the live wattage readings are spot-on, and the 16 A channel handles my heater without a hiccup. I've checked it against my utility meter and the numbers match.

Setup took me under ten minutes, and now I can watch my heater's draw in real time from my phone—the 16A rating covers everything I've plugged into it. The size is honestly the selling point; it disappears behind the outlet plate without any awkward bulging.