If you're setting up or troubleshooting a wired network, the first thing you need to determine is whether your cable tester just needs to verify continuity on RJ45 and RJ11 lines, or whether it also has to handle BNC coax and check live network response. That distinction separates the two options in this face-off.
Quick verdict: For most residential and small-office work, the $11.41 Networks Cable Tester Tool Ethernet RJ45 RJ11 LAN Wire Telephone Cable Tester is the practical choice: it's inexpensive, new, and covers the two most common twisted-pair cable types. If your toolkit includes BNC cabling or you want to perform a PING test for network connectivity, the $69.99 Kolsol Network Cable Tester LAN Ethernet Cable Tester For RJ45 RJ11 BNC PING is the more capable instrument, but it's a used unit and costs $58.58 more. The decision really comes down to whether you need live network diagnostics or just a basic wiring check.
| Feature | Kolsol Network Cable Tester | Networks Cable Tester Tool |
|---|---|---|
| Price | USD 69.99 | USD 11.41 |
| Condition | Used | New |
| Cable types | RJ45, RJ11, BNC | RJ45, RJ11 |
Where each tester wins
The Kolsol tester is the one to reach for when your cabling work goes beyond plain Ethernet. It adds BNC support and PING functionality, so you can not only confirm that wires are correctly terminated but also test whether a network device responds. That makes it a more complete troubleshooting tool for mixed cabling environments. The trade-off is that it's a used unit and carries a much higher listed price, so you need to weigh the extra capability against the extra cost.
The Networks Cable Tester Tool is the pick when you want a simple, affordable way to verify the most common cables. It has RJ45 and RJ11 ports, which covers Ethernet and telephone wiring, and it's small and compact enough to carry easily. Because it's a new unit, you don't have to account for previous wear. For someone who mainly patches cables at a desk or in a server room, this tester gives you the essential checks without overcomplicating things.
Product notes
Kolsol Network Cable Tester
This is the one to choose if you routinely work with BNC cables or need a PING test to see if a network path is alive. The unit is sold as used, and it costs considerably more than the basic tester, but it adds capabilities that a continuity checker can't provide. If you're a network technician or a home-lab enthusiast dealing with coax and live connections, the PING and BNC coverage make it a worthwhile investment. The limitation is the condition and price: you're buying a used tool at a premium, so it's not the right fit if you only need occasional RJ45 checks. For someone maintaining a mix of legacy and modern networking gear, the ability to test BNC and perform a PING can be the difference between a quick fix and a long troubleshooting session.
Networks Cable Tester Tool
This is the sensible option when the job is simple: confirm that an RJ45 or RJ11 cable is wired properly. It's new, compact, and easy to use, and it runs on a standard 9V battery that you'll need to supply yourself. You get the essentials without spending much, and it's light enough to keep in a drawer or travel bag. The main thing to keep in mind is that the battery isn't included, so you'll need to pick one up before your first test. For straightforward LAN and telephone cable checks, it's a budget-friendly companion that won't take up space or require a big investment.
Final choice by use case
Choose the Kolsol Network Cable Tester if your day includes BNC or live network tests, and you're comfortable with a used unit and a higher price. Choose the Networks Cable Tester Tool if you want a new, low-cost, portable tool for everyday RJ45 and RJ11 continuity checks.
