5 PCS OFI Optical Fiber Identifier 800nm-1700nm — Live Detection + VFL + LED All-in-One Chuck, Direction & Traffic Identifier for 0.25/0.9/2.0/3.0mm Fibers

Pack of 5 OFI optical fiber identifiers for quick detection and troubleshooting across the 800nm–1700nm wavelength band. This all-in-one chuck device combines live-signal identification, a visual fault locator (VFL) and an LED light to show fiber traffic and indicate signal direction. Compatible with common fiber diameters: 0.25 mm, 0.9 mm, 2.0 mm and 3.0 mm. A practical tool for technicians handling installation, maintenance and fault finding on optical fiber links.