Your ethernet run won't validate itself, and when a patch panel or telecom drop goes down, a dedicated tester beats guessing. For RF network cable and telecom test work, the choice often comes down to two NOYAFA testers: the NF-918S Network Cable Tester with 6 Wavelength Optical Power Meter and the NF-8506 LCD Digital Network Cable LAN Ethernet Tester Rechargeable. Both are new units aimed at roughly the same job, but the right pick depends on whether you need optical power readings or you work with both phone and network cable. One is listed at USD 49.99, the other at USD 59.95. Which one is right for you depends on the cable mix on your job site and whether you need optical checks. Let's compare the two.
Quick Verdict
For a single-box tester that leans toward optical verification, the NF-918S wins on scope; for mixed network and phone work with diagnostics, the NF-8506 is the stronger match. The NF-8506 sits at a higher listed price; the NF-918S is the lower-priced entry.
Comparison at a Glance
| Product | Listed Price | Cables Tested | Standout Feature |
|---|---|---|---|
| NOYAFA NF-918S Network Cable Tester with 6 Wavelength Optical Power Meter | USD 49.99 | RJ45 | 6-wavelength optical power meter |
| NOYAFA NF-8506 LCD Digital Network Cable LAN Ethernet Tester Rechargeable | USD 59.95 | RJ11, RJ45 | Rechargeable LCD tester with PING verification |
Where Each One Wins
The NF-918S is the one to reach for when an RJ45 job also needs optical readings. Its compact, battery-powered design makes it easy to bring to a workstation or comms room, and the integrated meter means you can confirm optical power without reaching for a second tool. The NF-8506 covers phone lines and network cable, which makes it the more flexible copper tester. You get digital feedback that is useful when you need to isolate a bad patch cable or verify a link after rerouting.
Product Notes
NOYAFA NF-918S Network Cable Tester with 6 Wavelength Optical Power Meter
The NF-918S is the lower-priced of the two and the one to grab when your priority is copper cable verification with an optical safety net. The six-wavelength optical power meter sets it apart: if you need to confirm optical power levels while also checking an RJ45 cable, this tester has that capability in one unit. Its compact, battery-powered design suits service calls and industrial spaces. The cable-testing scope is specified for RJ45, so if you need RJ11 support as well, the NF-8506 is the model that covers both.
NOYAFA NF-8506 LCD Digital Network Cable LAN Ethernet Tester Rechargeable
The NF-8506 is the one to choose when your job includes both RJ45 network cables and RJ11 phone lines. The rechargeable design is ready for repeated use, and the LCD readout plus PING functionality gives you a window into connection integrity, round-trip time, and network traffic load. It carries the higher listed price, and if your needs stop at RJ45 with optical power measurement, the NF-918S covers that at a lower cost. For mixed copper testing, this unit covers both cable types.
Final Choice by Use Case
If you're an installer or tech focused on RJ45 runs, the NOYAFA NF-918S is the direct fit. If you regularly see both Ethernet and phone jacks, the NOYAFA NF-8506 is the one to buy.

