Handheld fiber optic photometer for accurate power testing and diagnostics. Designed to bulky optical power meters while delivering dependable results in a compact, portable package. Key benefits Accurate test results in a compact handheld device, suitable for field use and onsite troubleshooting. Acts as a complete replacement for traditional optical power meters in many applications, reducing equipment bulk. Portable, easy to carry, and quick to deploy for onsite fiber optic testing. What it does Checks cable performance to verify link integrity and operational status. Calculates relative power loss to help assess link quality and performance. Locates faults along fiber links to speed up and maintenance. Supports troubleshooting by providing actionable measurements and diagnostics. Design and performance attributes Function: fiber optic power testing, performance assessment, fault finding, and troubleshooting. Size: compact handheld form for easy transport and onehanded operation. Material/construction: robust housing designed for field use and reliable operation in diverse environments. Performance: accurate measurements with a portable form factor, suitable for bandwidth applications. Use scenarios 1) Field installation and maintenance: verify cable performance on site, identify loss points, and locate faults quickly to minimize downtime. 2) Data center or telecom network commissioning: perform onsite power tests, assess link quality, and troubleshoot performance issues during deployment. 3) Manufacturing and environments: conduct quality control of fiber optic cables and connectors, ensuring performance standards are met before integration or after repairs.