Fiber Identifiers
Browse our full range of products.
KFI-35 Optical Fiber Identifier with Live Fiber Detection & Signal Direction Display
The KFI-35 Optical Fiber Identifier is a professional non-intrusive testing device designed to identify live optical fibers without interrupting network traffic. It accurately detects optical signal presence, transmission direction, and modulation tones while displaying relative optical power in real time. Compatible with 250μm, 900μm, 2mm, and 3mm optical fibers, the KFI-35 provides safe and reliable fiber identification for FTTH deployment, telecom maintenance, data center operations, CATV systems, and fiber optic troubleshooting. Its compact handheld design and intuitive digital display make it an essential tool for field engineers and network technicians.
View Details
KFI-45 Optical Fiber Identifier with Built-in VFL for Live Fiber Detection
The KFI-45 Optical Fiber Identifier is a portable and non-intrusive testing device designed to identify live optical fibers without interrupting network traffic. It accurately detects signal presence, transmission direction, and modulation tones while protecting active fiber links. Featuring a built-in Visual Fault Locator (VFL), the KFI-45 also assists in locating fiber breaks and verifying fiber continuity. Compatible with 250μm, 900μm, 2mm, and 3mm optical fibers, this compact device is widely used in FTTH installation, telecom maintenance, data centers, CATV systems, and fiber optic network troubleshooting.
View Details