Choosing between two RJ45/RJ11 cable testers at nearly the same listed price gets interesting when one is a used multi-format unit and the other is a new anti-interference line finder. Both work for network cable troubleshooting, but they're aimed at different parts of the job. The decision comes down to whether you need broader connector coverage in a familiar handheld tester or a newer diagnostic tool with cable-locating features.
Quick verdict
If your priority is covering RJ45 and RJ11 along with a couple of extra connector formats in one unit, the Network Cable Tester LAN Ethernet Cable Tester For RJ45 RJ11 BNC PING NF-8601W at USD 69.99 fits. If you'd rather buy new and want a line finder that helps identify cables in noisy environments, the FNIRSI LPM-10A Network RJ45/RJ11 Cable Tester Anti-Interference Line Finder US at USD 68.99 is the stronger match.
Price and condition at a glance
| Product | Listed Price | Price Bar | Condition |
|---|---|---|---|
| Network Cable Tester LAN Ethernet Cable Tester For RJ45 RJ11 BNC PING NF-8601W | USD 69.99 | Used | |
| FNIRSI LPM-10A Network RJ45/RJ11 Cable Tester Anti-Interference Line Finder US | USD 68.99 | New |
Where each tester wins
The NF-8601W tester wins when your bench already handles several connector formats and you want a single handheld tool that covers them without switching devices. The FNIRSI LPM-10A wins when your need is finding and diagnosing cables on a live network, with a display-oriented approach that makes the readout easier to absorb.
Product notes
Network Cable Tester LAN Ethernet Cable Tester For RJ45 RJ11 BNC PING NF-8601W
This is the unit to consider if you regularly work with RJ45 and RJ11 cables and also need BNC connector testing. The PING support makes it suited to live connection checks rather than just continuity. The concrete advantage is that BNC, PING, and the standard RJ45/RJ11 checks are all in one used tester, which matters when you don't want a second device on the bench. The limitation is the condition: it is listed as Used and the item is sold 'USED AS IS,' so it's not a fresh-out-of-the-box purchase. If that trade-off is acceptable, this unit gives you wide connector coverage for network work.
FNIRSI LPM-10A Network RJ45/RJ11 Cable Tester Anti-Interference Line Finder US
The LPM-10A combines anti-interference cable locating with POE checks, error checking, duplex mode detection, length measurement, port flashing, crimp testing, and faulty line detection. It also includes a 2.4-inch TFT color screen and USB-C power input, which makes it a more display-driven tool. The concrete advantage is that a single new unit can help you find the correct cable in a dense bundle while also checking POE and line faults. The limitation is connector scope: the listed RJ45/RJ11 support doesn't include BNC, so this isn't the pick for coaxial or BNC-based setups. If your work stays within twisted-pair Ethernet and phone cabling, the LPM-10A is the more complete diagnostic package.
Final choice by use case
For a network installer who wants locating and POE diagnostics in a new unit, the FNIRSI LPM-10A is the pick. For a tech who needs BNC coverage and PING support in a single tester and doesn't mind a used unit, the NF-8601W tester is the one to move forward with. The difference in listed price is small, so let your cable types and testing style make the call.
