Using this UV sensor is simple. First, connect the analog cable to the sensor. Then place the sensor in an area where you want to measure UV radiation, like outdoors in sunlight. You can refer to the WHO's UV index grading standards diagram to understand the UV index readings directly. When using it for DIY projects, follow your project's specific wiring and programming requirements. As for maintenance, keep the sensor clean and dry. Avoid exposing it to extreme temperatures or harsh chemicals. If you encounter any issues, refer to the provided documents such as the Wiki Doc and datasheets for troubleshooting.