Portable Network Cable Tester, RJ45, RJ11

The portable network cable tester is a practical cable tracing and line checking tool for network technicians. The network cable checker works with RJ45 Ethernet cables and RJ11 telephone lines, offering both analog and noise-free digital wire tracking modes. It can trace live POE cables under 48V DC without powering down network switches. Built with an LED line sequence indicator, flashlight and headphone jack, this handheld cable locator helps you identify broken points, short circuits and verify wire pairing, ideal for on-site cabling inspection, LAN setup and telecom wiring troubleshooting.

Specification

Features 

• Dual Mode Wire Tracing & Cable Tracking: This handheld network cable tracer combines digital noiseless tracing with analog tracing, supporting up to 3000m detection for RJ45 Ethernet cables, RJ11 telephone wires and UTP twisted pair cables. It works as a reliable network wire tracker for both LAN and structured cabling environments.
• Live POE Ethernet Cable Detection: Safely trace powered POE network cables with DC voltage below 48V — no need to power down switches or routers during testing. Ideal for live ethernet POE line identification in server rooms and on-site network maintenance.
• Cable Continuity & Line Sequence Test: Built-in LED indicators verify open circuits, short circuits and correct wiring order for terminated Cat5 / Cat5e / Cat6 Ethernet cables. A practical network cable checker for confirming cable continuity and T568A/T568B wiring.
• Handheld Ergonomic Design with Flashlight: Compact portable receiver with integrated torch for dark cabinets, wiring closets and low-light inspections. Adjustable signal sensitivity lets this handheld ethernet tester narrow in on the target wire precisely.
• Headphone Supported Operation: Plug in headphones to pick up tracing signals clearly in noisy workshops, server rooms or construction sites. Reduces ambient interference for faster cable identification and network troubleshooting.
  
  

Dimension

Applications

This network cable testing equipment helps technicians quickly trace hidden cables, locate wiring faults, test telephone lines and check live network connections in server rooms, offices and on-site projects.

Q&A

Q1: How to use this network cable tracker for wire tracing?
A: Connect the transmitter to your target RJ45/RJ11 cable, power on the unit and select digital or analog tracing mode. Hold the receiver and scan along the cable route. Adjust sensitivity to locate the target wire accurately.

Q2: Can this RJ45 cable tester trace live POE cables?
A: Yes. It supports tracing POE cables with DC voltage ≤48V. You can perform tests while the network switch stays powered on. Do NOT use it for cables above 48V DC.

Q3: What does the blue indicator light mean on this network wire tracker?
A: The blue LED activates for digital wire tracing mode. The transmitter sends digital signals along the cable. A steady blue light means audio signal detection, while a flashing blue light indicates vibration alert. If you turn the sensitivity knob down to minimum, both red and blue lights will illuminate together. This digital mode helps trace wires with less interference.

Q4: What does the red indicator light mean on this network wire tracker?
A: The red LED turns on for analog wire tracing mode. For fast cable location, turn the receiver volume to maximum first to locate the general cable area, then lower the volume to pinpoint your target wire precisely. Analog mode is great for quick, general cable scanning.

Q5: How to check cable wiring sequence with this tester?
A: Plug both ends of your terminated RJ45 cable into the transmitter and receiver. Turn on the TEST function. LED lights will light up sequentially to show if your wire pairing is correct or has open/short faults.