SONOFF DW2-RF - 433MHz RF Bezprzewodowy czujnik drzwi/okna

I was skeptical about the 433MHz range, but it picked up the signal from the far end of my yard when I tested it on the back gate. The push alert to my phone was instant, and the smart scene option with my camera feed has been a game-changer for checking deliveries.

The push notification came through before I even got my phone out of my pocket, which is exactly the peace of mind I needed. Tying it to my camera for real-time checks was simple, and the whole setup took about five minutes.

Took me ten minutes to mount it on the front door, and now I get a ping the second it swings open. The camera binding works exactly as advertised, so I can actually see who's coming in before I check the feed. Feels oddly reassuring for such a tiny gadget.