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 Power Meter FC/SC/ST universal interface Fiber Tester Built-in 1Mw Visual Fault Locator (OPM&VFL)

Product ID: 225257474

Details

Brand
D YEDEMC
Colour
Red
Item weight
140 Grams
Power source
Battery
Style
OPM&VFL

📶8 wavelengths (850-1650nm)

🔋≥72h battery life

🔌FC/SC/ST universal interface

€ 86.28

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your fiber testing game with precision and portability!

POWER THAT LASTS - Enjoy over 72 hours of continuous use on just two AA batteries—work uninterrupted.
COMPACT SMART DESIGN - Lightweight (140g), pocket-sized with backlight, auto-shutdown, and user calibration for on-the-go pros.
DUAL DISPLAY PRECISION - Simultaneously view linear mW and non-linear dBm for accurate, real-time readings.
UNIVERSAL CONNECTIVITY - Seamlessly test with FC, SC, and ST interfaces plus RJ45 for versatile network diagnostics.
MULTI WAVELENGTH MASTERY - Measure 8 standard wavelengths from 850nm to 1650nm for ultimate fiber insight.

This portable Fiber Optic Cable Tester combines an optical power meter, visual fault locator, and RJ45 tester into one compact device. Supporting 8 wavelengths (850-1650nm) and universal FC/SC/ST interfaces, it delivers high-precision measurements (-70dBm to +6dBm) with ±0.05dB accuracy. Designed for professionals, it features a backlit display, user calibration, automatic shutdown, and over 72 hours of battery life, making it an essential tool for fiber optic network installation and maintenance.

Specifications

ASIN	B07XKH68B3
Best Sellers Rank	351,050 in DIY & Tools ( See Top 100 in DIY & Tools ) 228 in Network Testers
Brand	D YEDEMC
Colour	Red
Customer Reviews	4.6 4.6 out of 5 stars (1,123)
Item Weight	140 Grams
Manufacturer	Yide Machinery Co. Ltd.
Manufacturer Part Number	OPM
Measurement Type	Optical Power Meter
Model Number	OPM-VFL-1
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Specification Met	IEC 61010-2-030, CE Marked, NIST Traceable
Style Name	OPM&VFL
UPC	782855705384
Upper Temperature Rating	60 Degrees Celsius

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€ 86.28

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

Anjali K.

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

1 month ago

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Fantastic experience overall. Will recommend to friends and family.

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