KPMOY9 - Optical Power Meter
- 4 tools in one device: optical power meter, 650nm VFL, RJ45 tester and LED work light.
- High precision readings across 800 to 1700nm with 0.01 dB resolution.
- 20h rechargeable battery over USB. Charge from a laptop, power bank or wall outlet.
- Universal ports: SC/FC/ST native plus an FC to LC adapter, singlemode and multimode.
- Lifetime warranty against manufacturing defects, backed by Karvinger support.
Everything you need, in one box
- KPMOY9 4-in-1 Optical Power MeterPower meter, VFL, RJ45 tester, LED light $69.90
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Free giftPremium protective caseRugged field protection
$19.90FREE -
FC to LC connector adapterFull connector coverage
$7.90FREE - Lifetime warranty + WhatsApp supportDirect line to a fiber expert FREE
Huge upgrade from the cheap meters I kept losing. Super accurate, the color display is easy to read, and it has run for over a month on the first charge. Closest thing to my old Viavi I have found at this price.
Great piece of kit for the price and surprisingly well built. Works perfectly for the work I do in a data center day to day.
Solid choice for a meter. Love the rechargeable battery, it lasts a long time and holds a charge well between jobs.
As a fiber construction engineer this has earned a permanent spot in my kit. Power meter, VFL, RJ45 tester and light in one, readings are precise and switching between dBm, mW and dB is easy.
Works extremely well and the readings are accurate. Awesome battery life, durable build, and the manual is clear. Incredible value for the price.
I mostly test Ethernet with it and the RJ45 tester catches bad crimps and ghost connections fast. The VFL and LED are genuinely useful extras. Built tough and rechargeable, you cannot beat it.
Reliable tool for my home network setup. I terminated Cat6 runs throughout the apartment and this made sure everything was wired right. Excellent battery and far more features than I need.
Great all in one fiber tool. The 800 to 1700nm range covers everything I test, the VFL is bright for spotting bends, and the RJ45 tester verifies cables quickly. Well made and built to last.
Handy little tool for light fiber work. Felt solid in the hand, screen is easy to read, and it was ready right out of the box with a case and charging cable. Intuitive enough to skip the manual.
Good basic unit and it comes with a nice case. USB-C charging, VFL and RJ45 testing are all convenient to have built in. Clear, readable screen.
Very good meter for both fiber and Ethernet. It actually caught broken pairs on a Cat6A cable that another tester passed. Works very well, definitely a keeper.
I bought it because it does both RJ45 and optical, which I both need. Works great for both, well built, bright display and the buttons make sense. Cannot find a single thing to complain about.
Comes with everything you need to read light levels on fiber, plus a cable tester with a handy wiremap function. Rechargeable over USB-C and the hard case is a nice touch.
Super easy to use and I love only needing one tool for fiber and Ethernet. Tells you right away if any wires are not connected properly. The rechargeable USB-C means no hunting for batteries.
This completely replaced the separate optical and Ethernet testers in our kit. Easy to use, does exactly what we need, and it has become our main tester. A really good product.
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One device for every network job
The KPMOY9 combines an optical power meter, a 650nm visual fault locator, an RJ45 cable tester and an LED work light in a single rugged unit. Carry less gear and get more done on every call.
Measure absolute and relative optical power from 800 to 1700nm with 0.01 dB resolution, trace faults with the built in VFL, and check Ethernet continuity and wiring on the spot. Fiber and copper, handled with one tool.
4-in-1 Tool
Power meter, VFL, RJ45 tester and LED work light in one compact device.
High-Precision Meter
Accurate readings across 800 to 1700nm with 0.01 dB resolution.
RJ45 Tester
Check Ethernet continuity and wiring instantly in the field.
Universal Ports
SC / ST / FC compatible plus an included FC to LC adapter for any job.
20h Rechargeable
USB charging from laptop, power bank or wall outlet. All-day runtime.
As featured in
Accurate optical power, every time
A sensitive InGaAs detector reads live fiber signals confidently, with easy unit switching and a 0 dB reference for consistent, repeatable testing across every wavelength.
Housed in a high-impact ABS shell built for real-world conditions, the KPMOY9 runs up to 20 hours on a charge over USB. Rugged, rechargeable, and ready for both fiber and Ethernet diagnostics.
Talk to a fiber expert, not a bot
Peter, our in house fiber expert, is available 8am to 6pm, Monday to Saturday to answer your technical questions before and after you buy.
Peter, Fiber Expert
8am to 6pm, Monday to Saturday
Reach us anytime on WhatsApp or by email at support@karvinger.com. We usually reply within a few hours.
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