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Handheld optical fiber identifier with built-in VFL module

WUQ

WUQ Live Optical Fiber Identifier 800-1700nm 10km VFL measurement tool

SKU CH-JVDZ-QMXXM

Identifies live fibre direction, power and tone from 800-1700nm plus built-in 10km VFL for fault location

  • TypeTest Equipment
  • Identify live fiber without service interruption using macro-bend detection
  • Detect signal direction and relative power across 800-1700nm range
  • Pinpoint faults up to 10km with built-in Visual Fault Locator
  • Recognize 270Hz, 1KHz and 2KHz tones with audible alerts
  • Test 0.9mm, 2.5mm and 25mm fibers without damaging cables

Live fiber identifier 800-1700nm

The WUQ optical fiber identifier detects live traffic on single-mode fibers without interrupting service. It operates across the 800-1700nm wavelength window and uses macro-bending to sense light leaking from the cladding. A built-in visual fault locator covers distances up to 10-15 kilometres. The unit also reads 270Hz, 1KHz and 2KHz tone signals for rapid fiber tracing.

Technicians verifying live circuits before

Installers and maintenance engineers who need to confirm signal presence, direction and relative core power on 25mm bare fiber, 0.9mm and 2.5mm jacketed jumpers will benefit. Buyers who require absolute power measurements in dBm should use a dedicated power meter instead. The tool is less effective on fibers where cladding is too thick or at 850/1300nm wavelengths where leakage is minimal.

Handheld test kit for FTTH and metro networks

The identifier fits into a technician’s kit alongside a power meter, cleaning supplies and spare connectors. It runs on replaceable batteries with low-battery alerts, so it is ready for field use without mains power. Macro-bend measurement works on live circuits, freeing the operator from scheduling shutdowns. The 10-15km VFL range supports fault location on distribution and feeder cables.

Highlights

  • Identify live fiber without service interruption using macro-bend detection
  • Detect signal direction and relative power across 800-1700nm range
  • Pinpoint faults up to 10km with built-in Visual Fault Locator
  • Recognize 270Hz, 1KHz and 2KHz tones with audible alerts
  • Test 0.9mm, 2.5mm and 25mm fibers without damaging cables

Specifications

TypeTest Equipment

Questions about this item

What fiber sizes does the 25 mm macro-bend adapter accept?

It works with 0.9 mm and 2.5 mm fiber casings as well as 25 mm bare fiber.

Will the 270 Hz tone detector pick up signals on 850 nm or 1300 nm links?

The unit operates from 800 to 1700 nm, but 850 nm and 1300 nm light leaks less, so 1310 nm and 1550 nm are easiest to measure.

How do I verify the built-in VFL is reaching the full 10 km range after setup?

Connect a known good fiber up to 10 km away; the visible red laser should appear at the far end if the VFL is working correctly.

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