Astrotek Network Cable Tester — RJ45 RJ11 Coax Tracker

The Astrotek RJ45 RJ11 Coaxial Network Cable Tester with Wire Tracker is an essential diagnostic tool for anyone deploying or maintaining UniFi networks and structured cabling systems. This versatile tester supports multiple cable types including RJ45, RJ11, RJ12, Cat 5, Cat 5e, and coaxial connections, making it invaluable for verifying proper termination and troubleshooting connectivity issues across your entire network infrastructure. Whether you’re certifying new cable runs for UniFi access points and switches or diagnosing mysterious connection problems, this tool quickly identifies wiring faults that could compromise network performance.

• Comprehensive testing capabilities detect wrong connections, short circuits, and open circuits across all eight conductors plus ground
• 9 LED indicator lights on both master and remote units provide clear visual confirmation of proper pin-to-pin continuity
• Wire tracking functionality helps locate and identify specific cable runs in complex installations
• Supports multiple standards including TIA-568A/568B wiring schemes for professional-grade installations
• Portable design with 9V battery operation (battery not included) for convenient field testing

At the current price of $17.00 (reduced from $36.00), this cable tester delivers exceptional value for DIY enthusiasts, IT professionals, and anyone serious about network reliability. Proper cable testing before connecting expensive UniFi equipment prevents frustrating troubleshooting sessions and ensures your network operates at peak performance from day one. The split remote/master design allows solo technicians to test long cable runs efficiently, while the grounding test capability ensures proper electrical safety—critical when deploying PoE-powered devices like UniFi access points, cameras, and switches throughout your installation.