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Trustscore 4.7 | 2,000+ reviews
1/9
KPMOY9 - Optical Power Meter
$69.90
- 4-in-1 Tool: Optical power meter, VFL, RJ45 tester, LED light.
- Accurate power readings: 800–1700nm with 0.01dB resolution.
- RJ45 Diagnostics: Test Ethernet continuity and wiring on the spot.
- All-day battery life: Up to 20 hours of continuous use.
Description
The Karvinger KPMOY9 is a compact 4-in-1 field tool combining an optical power meter, 650nm VFL, RJ45 cable tester, and LED work light. Engineered for technicians and network installers, it measures absolute and relative optical power across 800–1700nm with 0.01dB resolution, detects copper miswiring instantly, and provides reliable fiber troubleshooting with built-in VFL and illumination.
Condition: Brand new, unused, unopened.
Technical Specifications
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Battery type & capacity: Rechargeable lithium — up to 20h runtime
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Material: High-impact ABS industrial housing
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Dimensions: 5.52 × 2.76 × 1.38 in
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Weight: 7.2 oz
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VFL output: 10mW @ 650nm
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Wavelength range: 800–1700nm
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Accuracy: 0.01 dB resolution
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Charging type: USB charging
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Certifications: CE, FCC, RoHS
Included in the Box
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KPMOY9 4-in-1 device
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USB charging cable
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Protective case
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User manual
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Wrist strap
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Support card
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FC to LC adapter
Compatibility
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SC / FC / ST fiber connectors
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Singlemode & multimode fibers
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RJ45 LAN cables (continuity & wiring test)
Delivery
Processing Time: Orders ship same day or next day.
Shipping Options:
• Standard Shipping (Included)
• Express Shipping (calculated at checkout)
Shipping Time:
• Standard Shipping: 3-6 days
• Express Shipping: 2-3 days
Free Shipping
Fast delivery, typically arrives in 2-5 days.
Price-Match Guarantee
You always get the best price when you order with us.
Hassle-Free Exchanges
Easy returns and exchanges with step-by-step guidance.
4 Tools, One Compact Device
Power meter, VFL, RJ45 tester, and LED work light — all in a single rugged unit.
Carry less gear and get more done on every job.
1
High-Precision Power Meter
Accurate readings across 800–1700 nm with 0.01 dB resolution.
2
Built-In RJ45 Tester
Check Ethernet continuity and wiring instantly in the field.
1
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3
4
3
Universal SC / ST / FC Port
Compatible with all standard fiber connectors for maximum versatility on any job (SC to FC adaptor included)
4
Rechargeable & Portable
Recharge anywhere: via laptop, power bank, or wall outlet for up to 20 hours of use.
Accurate Optical Power, Every Time
Measure live fiber signals confidently with a sensitive InGaAs detector and easy unit switching.
Set a 0 dB reference for consistent, repeatable testing.
Our Customers Say It Best
Excellent
4.7/ 5
Trusted by 6,200+ customers
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
HUGE upgrade from the cheap ones
Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price. Super accurate, easy-to-read display, and excellent battery life. Feels close to my old JDSU/Viavi for a fraction of the price.
Ken
Best optical power meter
Best one I’ve ordered. Best one I’ve ordered. Best one I’ve ordered.
Amazon Customer
All-in-one tool
Great tool with everything I need in one device. Great tool with everything I need in one device. Great tool with everything I need in one device.
Joe
Great
Works perfectly. Works perfectly. Works perfectly.
Wayne G.
Excellent for fiber & Ethernet
Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions. Great meter for troubleshooting fiber and Ethernet at home. Easy to use, rechargeable, accurate, and packed with useful functions.
Zombie Dad
Easy and rugged
Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well. Rugged, rechargeable, accurate, and easy to use. Displays wire maps clearly and handles both fiber and RJ45 tests well.
LA DaveMan
A must-have for field work
Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too. Reliable, precise, compact, and extremely handy on job sites. Works great at home too.
Superdeleted
Accurate and flexible tester
Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types. Bright screen, accurate readings, and great functionality with multiple connector types.
Scott
Great value and build quality
Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use. Accurate readings, durable build, excellent battery life and very easy to use.
Jennifer Renee Shipman
Great multi-tool for fiber work
Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value. Accurate power meter, bright VFL, and useful RJ45 tester. Rechargeable and durable—excellent value.
Shmack's Thoughts
Reliable fiber tool
Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging. Clear screen, bright light, accurate power readings, and easy RJ45 checks. USB-C charging.
Jonathan N
Great for home networks
Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup. Strong battery life, solid build, and more features than expected. Extremely helpful for home network setup.
Mark H
Works well and built to last
Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool. Sturdy, accurate, clear display, and a very effective VFL. Reliable 4-in-1 tool.
Eli
Nice multi-function tester
Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet. Good value, easy to use, solid build, and works great for both fiber and Ethernet.
Sugar
Great unit
Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case. Good unit with a sharp display and useful features. Comes with a nice case.
Ethan
Easy and effective
Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks. Bright display, simple controls, well built, and works great for both RJ45 and optical checks.
Anappa
Excellent fiber & CAT6 tester
Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case. Accurate light readings and great cable mapping. Rechargeable and comes with a hard case.
Vine Customer
Very good meter
Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed. Accurately tests both fiber and Ethernet cables. Detected issues my other tester missed.
P. Rutkowski
Our main tester now
Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need. Replaced all our other testers. Easy to use and does everything we need.
slwpdx
Accurate and great value
Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy. Easy to use, charges fast, holds a charge, and matches name-brand meters in accuracy.
J
Ready for Any Network Job
From fiber testing to Ethernet diagnostics, the KPMOY9 gives you the tools to handle both.
Rugged, rechargeable, and built for real-world conditions.
