NF-919 3-in-1 Fiber Optic Tester - 3-in-1 design that includes a visual fault locator (VFL) and an optical power meter (OPM) to support on-site fiber testing. - Color LCD display provides clear visibility of test results; the red light function offers continuous and blinking modes to aid fault detection along fibers. - Versatile wavelength support across 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, and 1650 nm to match a wide range of fiber applications. - User friendly features include auto power-off, low battery indicator, and adjustable frequency options of 270, 1000, and 2000 Hz for different test scenarios. - Use scenarios - On site fault tracing: use the VFL to locate defects, verify connections, and inspect terminations in patch panels. - Link verification and power measurement: measure optical power with the OPM to confirm transmit power and assess link budget. - Multi-wavelength testing: test components and links across multiple wavelengths for networks with mixed wavelength requirements. - The NF-919 is designed to support reliable testing across common fiber applications with a focus on clarity, versatility, and practical performance.