Handheld Optical Fiber Test Light Source — Single-mode 1310/1550nm & Multi-mode 850/1300nm (High Test Precision)

Compact, high-precision handheld photometer engineered to fully replace an optical power meter. With quality construction and easy portability, it provides accurate measurements essential for modern high-bandwidth fiber networks. Use it to verify cable performance, compute relative power loss, locate faults and perform troubleshooting. Capable of measuring the length of network cables, coaxial cables and telephone lines, and able to detect open, short and cross-connect conditions.