Function and purpose The optical power meter enables direct measurement of optical power as well as relative measurement of optical attenuation. Stability and accuracy Provides stable and accurate readings, and can determine whether the lighting mode in the process is continuous or intermittent. Protection and durability Plastic shell protects the instrument and helps reduce damage from collisions and accidental drops to a certain extent. Wide applicability Designed to be safe and accurate, and suitable for generic cabling systems, optical device production and research, optical communication teaching and testing, and other optical fiber engineering. Practical use scenarios In a labs setting: measure the output power of laser diodes and verify fiber link attenuation during experiments. In manufacturing: on the production line, monitor and verify optical power consistency across devices and components. In education and training: demonstrate direct power measurement and attenuation concepts to students or trainees. Key attributes Function: direct and relative optical power measurement Compatibility: suitable for generic cabling systems and various optical devices Size and form: compact plastic shell for portable protection Material: plastic shell for durability Performance: safe, accurate measurements with clear indication of continuous versus intermittent lighting modes