The WS4 series device has an IP65 protection rating, which effectively prevents dust ingress and resists low-pressure water jets. However, when exposed long-term to harsh outdoor environments (such as continuous rainfall, high humidity, or intense sunlight), there is still a potential risk of moisture or rainwater gradually infiltrating, which could affect the device's long-term stability and service life.
It is recommended that for outdoor use, the device be installed in a weatherproof outdoor distribution box or other sheltered environment to enhance its reliability and durability in complex climatic conditions.