Great Sonoff product. Integration into network very easy. Unfortunately, the product is not suitable for its intended use, the module does not fit into a switch box. Here, the Shelly 2.5 is way ahead.

Tolles Sonoff Produkt. Einbindung in Netz sehr einfach. Leider ist das Produkt nicht für den vorgesehenen Einsatz geeignet, das Modul nicht in eine Schalterdose passt. Hier ist der Shelly 2.5 weit vorne.

Great Sonoff product. Integration into network very easy. Unfortunately, the product is not suitable for its intended use, the module does not fit into a switch box. Here, the Shelly 2.5 is way ahead.

I like that they labeled the connectors in black. On other sonoff devices it's just white on white, so I need to hold them at a very specific angle to see what's what. I also love that they have added the switch connect option, which dualR2 did not have by default. And I love the power metering capability the most. Smaller size, more features, a step forward for sure. If they would have also added RF, it would've been totally complete. Bought mine on summer sale for 10 USD. 

I like that they labeled the connectors in black. On other sonoff devices it's just white on white, so I need to hold them at a very specific angle to see what's what. I also love that they have added the switch connect option, which dualR2 did not have by default. And I love the power metering capability the most. Smaller size, more features, a step forward for sure. If they would have also added RF, it would've been totally complete. Bought mine on summer sale for 10 USD. 

I like that they labeled the connectors in black. On other sonoff devices it's just white on white, so I need to hold them at a very specific angle to see what's what. I also love that they have added the switch connect option, which dualR2 did not have by default. And I love the power metering capability the most. Smaller size, more features, a step forward for sure. If they would have also added RF, it would've been totally complete. Bought mine on summer sale for 10 USD.