what is the max distance this unit will test?

I am assuming you are talking about the laser. From my experience, it is only short distance such as a fiber enclosure. Or pig tail inside the node.

Is it supposed to come with an adapter for sc and st? mine came with no adapters. how to connect st to the meter?

I did not receive one either. I can not find one made for it. But it was pretty accurate compared to my old light meter with blue and green.

Is there a digital version of the user guide? My unit didn't come with instructions.

Not sure. The great part is it only does basically 3 things. play with the buttons for a couple minutes you know more than the manual. 1) cable fault locator (red laser/on off). 2) function key sets db reading (check light level). toggle to RG45 you can check for faults on ethernet. That’s it, good luck

What about lc interface ? i work with lc connections most

Lc is can't.It suit for SC/FC/ST.

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Fiber Optic Cable Tester Portable Optical Fiber Power Meter FC/SC/ST Universal Interface Integrated OPM, VFL, and RJ45 Functions (OPM-VFL-1)

Product ID: 156169245

Details

Brand
D YEDEMC
Color
Yellow
Item Weight
140 Grams
Power Source
Battery
Style
OPM&VFL

📡8 wavelength measurements (850-1650nm)

🔋Battery powered, auto shutdown

🔌Universal FC/SC/ST & RJ45 interfaces

€ 66.22

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Description

🚀 Elevate your fiber testing game with precision and portability!

UNIVERSAL COMPATIBILITY - Supports FC, SC, ST connectors plus RJ45 testing—future-proof your network diagnostics.
USER FRIENDLY PORTABILITY - Lightweight 140g design with backlight and automatic shutdown keeps you efficient on the go.
SMART MEMORY CALIBRATION - Save wavelength data and calibrate easily to maintain peak performance and reliability.
ALL IN ONE TESTING POWERHOUSE - Integrated Optical Power Meter, Visual Fault Locator, and RJ45 tester replace multiple tools in one sleek device.
PRECISION ACROSS 8 WAVELENGTHS - Measure from 850nm to 1650nm with pinpoint accuracy for all your fiber optic needs.

The D YEDEMC OPM-VFL-1 is a compact, battery-powered fiber optic cable tester combining an Optical Power Meter, Visual Fault Locator, and RJ45 tester. It supports 8 standard wavelengths (850-1650nm), universal FC/SC/ST interfaces, and features backlight, auto shutdown, and user calibration. Weighing just 140g, it’s designed for professional-grade accuracy and convenience in network diagnostics.

Specifications

ASIN	B07XKH68B3
Best Sellers Rank	#6,884 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Network & Cable Testers
Brand Name	D YEDEMC
Color	Yellow
Customer Reviews	4.6 4.6 out of 5 stars (1,338)
Item Weight	140 Grams
Manufacturer	Yide Machinery Co. Ltd.
Measurement Type	Powermeter
Model	OPM-VFL-1
Part Number	OPM
Power Source	Battery Powered
Specification Met	Ul 61010-1, Iec 61010-2-030
Style Name	OPM&VFL
UPC	782855705384
Upper Temperature Rating	60 Degrees Celsius

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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€ 66.22

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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