We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Handheld fiber identifier with multi-size chucks, VFL port and LED light

WUQ

WUQ TFI-40 Optical Fiber Identifier with VFL 800nm-1700nm measurement tool

SKU CH-N2X8-A2GB7

Identifies live fibre traffic and measures power from 800 to 1700 nm with a built-in 10 mW VFL and LED light for dark environments

  • Product typeTest Equipment
  • Identifies live fibre traffic without service interruption using multi-size chucks for .25, .9, 2.0, 3.0 mm fibres
  • Measures optical power from -40 dBm to 10 dBm with dual 1 mm InGaAs detectors for accurate core readings
  • Built-in 10 mW VFL at 800-1700 nm locates breaks and bends up to 10 km via 2.5 mm universal connector
  • Directional LED indicators and audible buzzer give immediate signal-direction and tone identification during maintenance
  • Integrated LED work light enables operation in dark environments without carrying a separate torch

All-in-One Chuck Design

The WUQ TFI-40 is a handheld fiber identifier that integrates a visual fault locator and LED work light. It accepts 0.25, .9, 2.0 and 3.0 mm fibers without swapping chucks. The detector uses two 1 mm InGaAs sensors covering 800 to 1700 nm.

Technicians Needing Live Traffic Checks

Suited for field engineers who must identify dark or live fibers, check core power direction and locate breaks up to 10 km using the 10 mW VFL. Buyers who need a lab-grade power meter with absolute accuracy or a unit that terminates connectors should look elsewhere.

-40 to 10 dBm Sensitivity Range

The detector sensitivity spans -40 dBm to 10 dBm, which determines the weakest and strongest signals the tool can reliably read. Match this window to the expected link budget before purchasing.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $106.99
Pricier than about 65% of the 3,030 comparable items (median $54.99).

Specifications

Product
Product typeTest Equipment

Questions about this item

How long does the battery last when I run the VFL and LED all day?

The unit runs on battery power and shows a low-battery indicator when charge drops, so you can swap cells before the VFL or LED cut out during a full day of testing.

How much heat or noise does the TFI-40 produce during continuous use?

It has no fan or moving parts, so operation is silent and the housing stays cool even while the 10 mW VFL and LED are running for extended periods.

What fiber sizes can I test without buying extra adapters?

The all-in-one chuck accepts 0.25 mm, 0.9 mm, 2.0 mm and 3.0 mm fibers directly, so no separate adapters are needed for those common diameters.

More in Meters, Testers & Measuring Tools

Similar items