SONOFF SNZB-02D Zigbee LCD スマート温湿度センサー

Finally stopped opening my wine fridge just to check the temp—the little screen shows it instantly from across the kitchen, and the app updates are spot-on when I’m upstairs. Humidity readings match my standalone hygrometer within a couple percent, so I trust it for my cheese drawer now. The battery

The 5-second refresh is legit—I checked it against a wired thermometer and it matched every time. The screen is easy to read from across the room, and the 120m range covers my whole kitchen without dropouts.

I was skeptical about the 5-second refresh rate, but it genuinely updates that fast, which makes checking my fermenting dough a breeze. The 120m range even reaches my garage from the kitchen router, and the humidity readings match my standalone hygrometer almost perfectly.