Sonoff Pow R3 is the new device designed to function as a single-phase WiFi switch and meter for your home. Its main features are as follows: maximum output power 25 A / 5500 W : Sonoff Pow R3 can, for example, make your high-power appliances intelligent, such as an induction hob, or function as a single-phase WiFi energy meter for your entire home energy consumption measurement: you can monitor active power, current and voltage absorbed by your appliances using the eWeLink app; a history of up to 100 days is kept with the possibility of downloading in CSV format overload protection: in the event of an anomaly detected, the power supply will be cut off to avoid damage and dangers to the device remote on and off: you can manage the power wherever you are, ensuring the safety of your appliances and saving on the electricity bill : thanks to the compatibility with Alexa and Google Home you can also control switching on and off with your voice Another very important feature is that the output contact is normally closed: this means that in the absence of power supply or device failure, the operation of the loads downstream is still guaranteed. Finally, the device benefits from the new native integration of eWeLink with Home Assistant to allow you to create unified dashboards to view the consumption of the various household appliances: Observing the dimensions of 162 × 122 × 46 mm and the construction features, it is immediately clear how it has been designed to handle high loads with an installation inside an electrical panel with DIN bar. In particular, observing the connection terminals of the device you can see how they are generously sized to accommodate electrical cables of the necessary section (4 mm2) to support such important loads (25 A): The device connection wiring diagram is rather elementary: the smart device must absolutely downstream of the magnetothermic differential switch to guarantee safety Connection cables of sufficient section must be used for the managed load since we are talking about important loads and appliances Technical specifications Voltage Input: 100 ~ 240V AC (50 / 60Hz) Network: 2.4GHZ, 802.11 b / g / n Max. Voltage: 100 ~ 240V AC (50 / 60Hz) Max. Power: 5500W Wireless Standard: 2.4GHZ, 802.11 b / g / n