HDMI & RJ45 Network Cable Tester | POE Anti-Burn Protection

Multifunctional HDMI & Network Cable Tester — Test Smarter, Work Faster

Meet your all-in-one cable diagnostics companion. The Fanmuran Multifunctional Network & HDMI Cable Tester brings together RJ45 LAN, RJ11 telephone line, and HDMI signal testing in a single compact unit. Whether you're a professional network technician or a home user troubleshooting a patchy connection, this tester delivers fast, accurate results with zero guesswork. Made in Mainland China.

Why You'll Love This Tester

• All-in-One Testing: Detects open circuits, short circuits, and miswiring on RJ45 (8P8C) LAN cables, RJ11 telephone lines, and HDMI high-definition cables — all from one device.
• HDMI Signal Verification: Confirms stable audio and video signal transmission through HDMI cables, helping you quickly identify faulty AV connections.
• POE Anti-Burn Protection: Built-in POE (Power over Ethernet) safeguard shields both the tester and connected devices from overvoltage and overcurrent damage during testing — essential for peace of mind when working with powered network equipment.
• Instant LED Readout: Clear indicator lights display test results at a glance — no complex menus, no confusing readouts, just plug in and go.
• Compact & Portable Design: At just 13 × 13 × 5 cm, this tester slips easily into a toolkit or laptop bag, ready for home network setups, office IT maintenance, or on-site wiring projects.
• CE Certified: Meets European conformity standards for safety and electromagnetic compatibility.

Specifications

• Compatible Cables: RJ45 LAN (8P8C), RJ11 Telephone, HDMI
• Protection: POE Anti-Burn (overvoltage & overcurrent)
• Dimensions: 13 × 13 × 5 cm
• Certification: CE
• Battery: Not included
• Brand: Fanmuran (Model: 481600)
• Origin: Made in Mainland China

What's in the Box?

• 1 × Multifunctional Ethernet / HDMI / RJ11 Cable Tester

Packed securely in a bubble bag. No retail box included.

Perfect For

• Home network setup and troubleshooting
• Office and IT equipment maintenance
• Engineering wiring and structured cabling projects
• AV installation and HDMI cable verification
• Telephone line diagnostics

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For more on network cable standards and best practices, visit the NIST Communications Technology Laboratory.

Frequently Asked Questions

Q: Can this network cable tester check all types of Ethernet cables including Cat5, Cat6, and Cat7?

A: Yes — the tester uses an RJ45 (8P8C) interface, making it compatible with Cat5, Cat5e, Cat6, and Cat7 Ethernet patch cables and bulk cables. It checks all 8 conductors for open circuits, short circuits, and crossed wiring.

Q: What does the POE anti-burn protection actually do?

A: Power over Ethernet (POE) networks carry electrical power alongside data. Without protection, connecting a tester to an active POE port could damage the tester or the network equipment. The built-in anti-burn circuit automatically limits overvoltage and overcurrent, keeping both your tester and your devices safe during live-line testing.

Q: Does this tester require batteries, and how do I read the results?

A: The tester does not include batteries in the package — please check the unit for its power requirements before use. Results are shown via onboard LED indicator lights: each light corresponds to a specific wire pin, so a quick visual scan immediately tells you which conductors are correctly wired, open, or shorted — no software or screens needed.

Q: Is this tester suitable for testing telephone lines as well as LAN cables?

A: Absolutely. The tester includes an RJ11 interface specifically for telephone line testing, letting you verify continuity and pinout on standard phone cables in addition to LAN and HDMI cables — making it a truly multifunctional tool for any wiring job.