The SPD-200 UV Spectral Power Density Meter is primarily used for measuring various UV optical irradiation parameters (spectral power density) in optical medical, healthcare, sterilization, disinfection, and other related products. It is suitable for convenient and accurate measurement of ultraviolet radiation intensity and assessing human photobiological safety in disinfection and sterilization environments. Additionally, it provides guidance on effective sterilization and disinfection times, as well as safety protection measures. It is the optimal solution for on-site testing of COVID-19 disinfection UV products.