Sensor de temperatura Sonoff DS18B20 resistente al agua y acero inoxidable

El sensor DS18B20 ofereix una precisió típica de ±0,5°C en el rang de -10°C a +85°C. Fora d’aquest rang, la tolerància pot augmentar gradualment fins a aproximadament ±2°C als extrems (-55°C o +125°C).

El cable i la càpsula del sensor estan dissenyats com a resistents a l’aigua, apropiats per a ús en ambients humits i exteriors, tot i que es recomana verificar el segellat de les connexions elèctriques per evitar filtracions en instal·lacions prolongades a l’aire lliure.

Per mantenir la precisió, és important evitar l’acumulació de brutícia o corrosió a la sonda i no exposar-la a xocs tèrmics ràpids o químics agressius; es recomana revisar-la i netejar-la cada 6-12 mesos segons l’entorn.

El DS18B20 proporciona més precisió i un rang més ampli d’operació (-55°C a +125°C), mesura només temperatura (no humitat) i permet connectar múltiples sensors en un sol bus 1-Wire, a diferència del DHT22, que també mesura humitat però té menys rang i precisió.

The DS18B20 sensor offers a typical accuracy of ±0.5°C in the range from -10°C to +85°C. Outside that range, the tolerance may gradually increase to around ±2°C at the extremes (-55°C or +125°C).

The cable and sensor capsule are designed to be water-resistant, making them suitable for use in damp environments and outdoors, although it is recommended to check the sealing of the electrical connections to prevent ingress in long-term outdoor installations.

To maintain accuracy, it is important to avoid dirt build-up or corrosion on the probe and not expose it to rapid thermal shocks or aggressive chemicals; it is recommended to inspect and clean it every 6–12 months depending on the environment.

The DS18B20 provides greater accuracy and a wider operating range (-55°C to +125°C), measures temperature only (not humidity), and allows multiple sensors to be connected on a single 1-Wire bus, unlike the DHT22 which also measures humidity but has a narrower range and lower accuracy.

The DS18B20 sensor offers a typical accuracy of ±0.5°C in the range from -10°C to +85°C. Outside that range, the tolerance may gradually increase to approximately ±2°C at the extremes (-55°C or +125°C).

The cable and sensor capsule are designed to be water-resistant, making them suitable for use in damp environments and outdoors, although it is recommended to check the sealing of the electrical connections to prevent ingress in long-term outdoor installations.