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Your New Favorite Fiber Identifier And 10mw Visual Fault Locator Afi420l Device [fedaMI1i]

$34.99 $111.99 -69%

Fast find fiber in a massIndicate signal directions in fiberIndicate Live or dark fiberDetect 270Hz, 1kHz, 2kHz from laser sourceBuild in VFL 1mW or 10mW (Optional)Suitable for 0.25, 0.9, 2.0, 3.0mm fiber, no need to change adapterOne-year warranty a

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Fast find fiber in a mass

Indicate signal directions in fiber

Indicate Live or dark fiber

Detect 270Hz, 1kHz, 2kHz from laser source

Build in VFL 1mW or 10mW (Optional)

Suitable for 0.25, 0.9, 2.0, 3.0mm fiber, no need to change adapter

One-year warranty and Three-year recommended calibration interval

Model AFI400 / AFI420S / AFI420L
Wavelength Range 800 to 1700nm (SM)
Recognizable signal type* CW, 2kHz, 1kHz, 270Hz ±10%
Detector Type InGaAs 2pcs
Fiber Type 0.9, 0.25, 2.0, 3.0 mm fiber
Sensitivity +10 ~ -50dBm
Accuracy * +10dB to -30 dBm (Continuous Wave) /+10dB to -25 dBm (Modulated Signal)
LED Indicator Signal direction; signal frequency (2kHz/1kHz/270Hz); low battery
Visual Fault Locator No / 1mW / 10mW
VFL Connector 2.5mm universal connector
Power Supply AA * 2

at 20±3℃, indoor, 1550nm wavelength, 0.9mm fiber, with white coat, 270Hz, error 5%,

0.25, 2.0, 3.0mm fiber, the performance at continuous wave will be lower

1KHz, 2KHz, the performance at modulated signal will be lower

at 1310nm wavelength, the performance will be lower

Size(H*W*D) 230mm * 45mm * 45mm
Weight About 200g
Storage Temperature -20 -- +60°C, < 90%RH
Operating Temperature -10 -- +50°C, < 90%RH

What Our Customers Say

January 11, 2026

Absolutely no complaints!

A great item that is a pleasure to use.

- Medea S..

January 11, 2026

Absolutely no complaints!

This is a clever and handy gadget.

- Harri H..

January 11, 2026

Absolutely no complaints!

A purchase I am extremely happy with.

- Vita C..

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