Can it test for both multi and single mode fiber? If i use it below 10KM cable, will it harm the cable?

I use it with SM cable - yellow I use it with MM cable - aqua & orange (san)

Can i bring it for travel/ on the plane?

If you are going to be testing Fiber lines, yes. I don't know why you wouldn't be able to take it in a carry on. I mean unless you plan on shining anyone, they'd be just as upset if it were a regular flashlight. The emitter isn't as strong as some of those pointer laser lights, still, probably not good to shine someone.

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Visual Fault Locator 30KM, VFL Fiber Optic Tester Kit Include Single Mode 9/125um FC Male to LC Female Adapter, Fib er Light Pen for Fiber Network Cable Test

Product ID: 459867469

Details

Brand
GESD
Colour
Red
Power Source
Battery
Specification Met
CE
Style
Portable

📏Detects faults up to 20-30 km range

🔌Universal 2.5mm connector fits ST, SC, FC cables

🔦650nm bright laser for precise fault detection

Description

🔍 Illuminate your fiber network’s hidden flaws like a pro!

SMART POWER MANAGEMENT - Long battery life with low battery warning keeps you testing longer without interruptions.
UNIVERSAL COMPATIBILITY - 2.5mm connector supports all major fiber types—ST, SC, FC—streamlining your workflow.
RUGGED PORTABLE DESIGN - Compact pen-style with stainless steel head and aluminum body built to withstand field challenges.
EXTENDED REACH FOR FIELD PROS - Reliable detection up to 30 km ensures no fault goes unnoticed on long-haul cables.
PINPOINT FIBER FAULTS INSTANTLY - 650nm laser light reveals breaks, bends, and cracks with unmatched clarity.

The Visual Fault Locator 30KM is a portable fiber optic tester featuring a 650nm laser for precise fault detection up to 20-30 km. It supports universal 2.5mm connectors compatible with ST, SC, and FC fiber cables. Designed for field use, it combines rugged stainless steel and aluminum construction with smart power management for reliable, long-lasting performance.

Specifications

ASIN	B08Q85W6QJ
Best Sellers Rank	#134,420 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #340 in Network & Cable Testers
Brand Name	GESD
Colour	Red
Customer Reviews	4.6 4.6 out of 5 stars (585)
Manufacturer	GESD
Measurement Type	Wavelength
Model Number	vfl-green-P01
Number of Items	1
Part Number	vfl-green-kit-01
Power Source Type	Battery Powered
Specification Met	CE
Style Name	Portable
UPC	791523251290
Unit Count	1 Count
Upper Temperature Rating	60 Degrees Celsius

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