Shelly 1PM Gen4 is a multiprotocol relay with power metering that wires behind a switch and speaks Wi-Fi, Bluetooth, Zigbee, and Matter, so it fits almost any smart home ecosystem.
One mode at a time: the device serves one of these combinations, not all of them at once.
Recipes using this device
High Energy Usage Alert
Installs a Home Assistant automation that watches your whole-home power draw and warns you when it stays high for longer than it should, so a heater or a forgotten appliance does not run all day unnoticed. Add speakers to hear it, add a smart plug to shed the load.
Leak Auto Shutoff
Installs a Home Assistant automation that closes your water shutoff valve the instant a leak sensor goes wet, so a burst hose or a failed valve stops flooding within seconds. Add a smart plug to cut the appliance, a siren, and a speaker.
Recipes that can use it
These recipes are built around other hardware, and pick this device up as an optional extra.