The Optical Power Meter With Red Light combines three essential tools in one compact device, simplifying fieldwork and onsite testing. AllinOne 3 in 1 tool The device functions as an optical power meter, a precision optical fiber tester, and a network cable tester, giving you three capabilities in a single handheld unit. Accurate optical fiber tester Equipped with a precise optical fiber tester that enables quick identification of fiber connections and swift fault detection, helping you verify link integrity efficiently. Comprehensive network cable test Includes a network cable test function to check and verify network cables, supporting quick troubleshooting and verification of cable continuity and performance. Userfriendly interface Clear LCD display and an intuitive design allow you to obtain accurate readings easily, reducing setup time and minimizing measurement errors. compact and portable Designed for onsite use, the device offers a compact form factor ideal for fieldwork, service calls, and tight installation spaces. Use scenarios Field fiber installations and maintenance Verify fiber connections, locate potential faults, and confirm link status during installations or repairs at remote sites. Data center and office network verification Test and validate network cables during builds, relocations, or troubleshooting to ensure cable integrity and correct operation. Training, labs, and demonstrations Use in educational or technical training environments to demonstrate fiber testing and network cabling procedures with a single, reliable instrument.