Network Cable Tester Lanberg NT-0404 PoE Tester Black Blue

The Lanberg NT-0404 PoE Tester is a compact network cable tester designed for quick identification of cable faults and basic Power over Ethernet (PoE) diagnostics. It operates at 9V and is intended to help network technicians verify cable continuity, detect wiring errors and check PoE presence on network links. The black and blue housing provides a clear visual appearance while keeping the device portable for field use.

Advantages

The tester combines basic PoE verification with standard cable continuity checks in a single handheld instrument, allowing rapid on-site diagnostics without bulky equipment. Its 9V operation offers compatibility with common battery sources and ensures consistent performance during inspection. The compact size and dual-colour design improve usability and make the device easy to carry and identify among other tools.

Suitable for

• Field testing of Ethernet cables and connectors
• Quick verification of PoE presence on network ports
• Identifying wiring faults and continuity issues in structured cabling
• Routine maintenance and troubleshooting by network technicians

Key specifications

• Product type: PoE tester
• Operating voltage: 9V
• Colour: Black and Blue

How to use

Connect the tester to the network cable or network port you wish to check, following normal safety precautions for live network equipment. Power the unit with a compatible 9V battery, then initiate the test according to the device’s front-panel controls. Observe the tester indicators to determine continuity, wiring configuration and the presence of PoE on the link. When testing multiple cables, disconnect the tester between measurements and store it in a safe place to avoid damage.

Recommendations

Use the tester for preliminary diagnostics and routine checks; for in-depth analysis or when a detailed measurement of voltage and power class is required, complement this tool with specialized PoE meters or certified laboratory equipment. Replace the 9V battery as needed and avoid exposure to moisture or extreme temperatures to preserve functionality.