

Ecowitt WH41 PM2.5 with Solar Panel
Ecowitt · WH41
The Ecowitt WH41 is an air quality sensor designed to measure PM2.5 particles and send them to the Ecowitt ecosystem via radio frequency. It is especially useful for home weather stations, as it lets you monitor outdoor pollution and view the data from a compatible console or gateway. It includes a solar panel to help keep the rechargeable batteries charged.
✓ Pros
- Measures outdoor PM2.5
- Integrated solar panel
- Compatible with the Ecowitt ecosystem
- Can be integrated into Home Assistant through an Ecowitt gateway
- A solid choice for home weather stations
✗ Cons
- Requires a compatible Ecowitt gateway or console
- No direct WiFi
- Does not measure CO2 or other particle sizes
- You must choose the correct frequency for your region
Compatibility
Specifications
| Model | WH41 |
| Measurement | PM2.5 |
| Use | Outdoor |
| Power | Rechargeable batteries + solar panel |
| Connectivity | Ecowitt RF |
| Frequency | 868 MHz EU / 915 MHz US / 433 MHz depending on region |
| Gateway required | Yes |
| Home Assistant integration | Via Ecowitt gateway |
| Power supply | Baterías recargables + panel solar |
Related content

Watch on YouTube
Sensor de Calidad del Aire Exterior Ecowitt: Monitoriza PM2.5 con Energía Solar y Home Assistant
Sabemos que la calidad del aire interior es vital, pero ¿qué pasa con el aire que entra en nuestra casa? Monitorizar la contaminación exterior nos permite tomar decisiones inteligentes, como cerrar ventanas automáticamente o activar purificadores antes de que los niveles sean críticos. En este artículo, analizamos el Ecowitt WH41, un sensor de partículas PM2.5 diseñado para exterior que funciona con energía solar.
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