WeMos SHT30 Temp & Humidity Sensor Shield

Finally a sensor that gives me accurate readings within 0.3°C right out of the box—no calibration fiddling needed. Plugged it into my board and it worked immediately.

I've been monitoring my greenhouse with this shield for a week, and the readings are incredibly consistent compared to my old analog hygrometer. The digital readout updates every few seconds, making it easy to catch sudden humidity changes.

The ±0.3°C accuracy spec is what sold me, and so far the readings match my reference thermometer almost perfectly. The shield sits flush on the D1 Mini with zero wiring fuss, which makes it a no-brainer for any temp logging project.