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LF064 Y8 Multifunction Optical Power Meter

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Product Description

The Y8 Series is a rugged, pocket-sized all-in-one test instrument built for fiber optic and structured cabling professionals. Instead of carrying separate tools for optical power testing, fault location, and network cable diagnostics, technicians get everything in a single ergonomic handheld unit.

Key Features

1. Optical Power Meter (OPM)Accurately measures optical signal power in fiber links to verify signal loss, splice quality, and network performance.

2. Visual Fault Locator / Red Light Source (VFL)Built-in red laser source pinpoints fiber breaks, poor splices, macrobends, and connector faults by eye — available in 5 km, 15 km, 20 km, and 30 km output range options depending on model.

3. LED FlashlightIntegrated LED illumination for working inside dark ODF cabinets, junction boxes, and equipment racks.

4. RJ45 Network Cable TesterChecks wire-by-wire continuity and pin sequence on Ethernet/network cables to confirm correct termination.

5. RJ45 Network Cable Tracer (5-in-1 and 6-in-1 models)Locates and traces cable runs through walls, ceilings, cable bundles, and patch panels — ideal for identifying unlabeled cables on site.

6. Laser Distance Meter (6-in-1 model only)Built-in laser rangefinder for quick, accurate distance measurement during site surveys and installation planning.

Function Tiers

Tier	Functions Included
4-in-1	Optical Power Meter + Visual Fault Locator (Red Light) + LED Flashlight + RJ45 Cable Continuity Test
5-in-1	All 4-in-1 functions + RJ45 Network Cable Tracing
6-in-1	All 5-in-1 functions + Laser Distance Measurement

How to Choose the Right Y8 Model (3 Simple Steps)

Not sure which version fits your business? Follow these three steps — most buyers can find their model in under a minute.

Step 1 — Pick Your Function Tier (what do you need it to do?)

Your Situation	Recommended Tier
I only need to test fiber signal power and locate fiber faults, plus basic network cable check	4-in-1
I also need to trace/find cables hidden in walls, ceilings, or bundles	5-in-1
I also need a laser distance meter for site surveys/measurements	6-in-1

Step 2 — Pick Your VFL (Red Light) Range (how long are your fiber links?)

Typical Cable/Link Length	Recommended Range
Indoor / FTTH drop cables, short-distance troubleshooting	5 km
Standard access network, most everyday FTTH & LAN jobs	15 km
Longer distribution links	20 km
Long-distance or backbone-level testing	30 km

Step 3 — Pick Your OPM Dynamic Range (what signal levels will you measure?)

Signal Type	Recommended Dynamic Range
Standard GPON/EPON/FTTH signals (most common choice)	-70 to +10 dBm
Entry-level / budget-focused orders	-70 to +6 dBm
High-power systems, CATV, or amplified links	-50 to +26 dBm

Quick Example

A field technician installing and maintaining standard FTTH drops up to 15 km, who also needs to trace unlabeled network cables on site, would land on:Step 1 → 5-in-1, Step 2 → 15 km, Step 3 → -70 to +10 dBm = Model Y8-5Y1510

Still unsure? Send us your typical link length and testing scenario, and we'll recommend the right model for your order.

Model & Specification Overview

Model No.	Function Tier	VFL Range	OPM Dynamic Range	Built-in Battery
Y8-4Y0500	4-in-1	5 km	-70 to +6 dBm	600 mAh Li-ion
Y8-4Y0510	4-in-1	5 km	-70 to +10 dBm	600 mAh Li-ion
Y8-4Y0550	4-in-1	5 km	-50 to +26 dBm	600 mAh Li-ion
Y8-4Y1510	4-in-1	15 km	-70 to +10 dBm	1100 mAh Li-ion
Y8-4Y1550	4-in-1	15 km	-50 to +26 dBm	1100 mAh Li-ion
Y8-4Y2010	4-in-1	20 km	-70 to +10 dBm	1100 mAh Li-ion
Y8-4Y3010	4-in-1	30 km	-70 to +10 dBm	1100 mAh Li-ion
Y8-5Y0510	5-in-1	5 km	-70 to +10 dBm	600 mAh Li-ion
Y8-5Y1510	5-in-1	15 km	-70 to +10 dBm	1100 mAh Li-ion
Y8-6Y1510	6-in-1	15 km	-70 to +10 dBm	1100 mAh Li-ion

Additional wavelength, range, and dynamic-range combinations available on request — contact us for custom configurations and MOQ details.

Standard Package Includes

600 mAh models (5 km VFL range):

Main Unit ×1
Type-C Charging Cable ×1 (built-in 600 mAh lithium battery)
Ceramic Adapter Core ×1
Built-in Network Remote/Tracing Unit
Lanyard ×1
User Manual ×1
Warranty Card ×1
Packaging Box ×1

1100 mAh models (15 km / 20 km / 30 km VFL range):

Main Unit ×1
Type-C Charging Cable ×1 (built-in 1100 mAh lithium battery)
Ceramic Adapter Core ×1
Built-in Network Remote/Tracing Unit
Lanyard ×1
User Manual ×1
Warranty Card ×1
Packaging Box ×1

Applications

FTTH (Fiber to the Home) installation and after-sales maintenance
Telecom operator and ISP network deployment
Data center and enterprise structured cabling
Fiber splicing and connector quality verification
Cable management and troubleshooting for IT/network technicians
Low-voltage and electrical contractors

Get a Quote

Contact us with your required function tier, VFL range, and order quantity to receive a tailored quotation and lead time.

FAQ

Q：

What is the Y8 6-in-1 optical power meter used for?

A：

The Y8 6-in-1 optical power meter is used for fiber power measurement, visual fault locating, RJ45 cable testing, cable tracing and field inspection depending on the selected function tier. It helps FTTH contractors reduce the number of separate tools carried onsite.

Q：

How should B2B buyers choose between Y8 4-in-1, 5-in-1 and 6-in-1 models?

A：

Choose the Y8 4-in-1 model for basic optical power and VFL work, the 5-in-1 model when RJ45 cable tracing is needed, and the 6-in-1 model when distance measurement is also required. Buyers should match the tier to technician workflow instead of buying only by price.

Q：

Why does VFL range matter when buying a Y8 optical power meter tester?

A：

VFL range affects how easily technicians can locate bends, breaks or bad splices in field cable. For B2B buyers, selecting 5 km, 15 km, 20 km or 30 km should depend on network length, job type and whether the tester is used for FTTH drops or longer access links.

Q：

Can the Y8 optical power meter replace a professional OTDR?

A：

No. The Y8 optical power meter and VFL tester is useful for power checks, visual fault finding and basic onsite troubleshooting, but it does not replace an OTDR for event distance, reflection analysis or detailed link characterization. Many teams use both tools together.

Q：

What should distributors check before ordering Y8 optical power meter testers in bulk?

A：

Distributors should confirm function tier, wavelength range, optical connector interface, VFL output option, RJ45 test functions, language, battery, packing and warranty. Clear model confirmation helps avoid returns caused by buying the wrong Y8 version for local installers.

Inquiry

To learn more about this product, you can submit your requirements here.