Multifunctional integration: wiring overhaul completed to ensure seamless compatibility with existing equipment and streamlined integration. precision optical power test: detector with measurement error less than ±0.2 dB; manual calibration available to finetune performance. LED lighting lamp: provides illumination for line checking in dark environments, improving visibility and accuracy during inspection. intensity penetrating red light: luminous head with strong penetration and longer service life for reliable operation in challenging conditions. Use scenarios On manufacturing lines for optical power testing of cables and components, ensuring precise measurements and quick verification during QA. During wiring overhaul projects, to verify wiring integrity and support accurate test results without additional equipment. In field service or laboratory settings with limited lighting, using the red light head for alignment and linecheck tasks while maintaining measurement performance.