Jonard Tools TDR-100 Network Cable Tester and TDR, 6.6-1312' Detection

Get accurate, fast cable diagnostics on the job with the Jonard Tools TDR-100 network cable tester and TDR. Built for technicians and integrators, this tool combines time-domain reflectometry with practical network testing to pinpoint breaks, shorts and impedance issues while also measuring cable length across a 6.6–1312' detection range. The TDR-100’s combination of cable length measurement and fault localization helps you reduce truck rolls, speed up installations and cut downtime for security, surveillance and IT networks.

Designed for real-world low-voltage and networking work, the Jonard Tools TDR-100 simplifies verification of cabling infrastructure before camera, access control or monitoring systems go live. Its intuitive operation means faster on-site decisions and fewer callbacks. Use it to validate runs, locate intermittent faults, and confirm pair integrity on new installs or maintenance checks. Add the TDR-100 to your toolkit for reliable, repeatable testing that keeps projects on schedule and systems performing as expected.

• Rapid fault localization with TDR accuracy reduces troubleshooting time and minimizes network downtime
• Measures cable length and locates faults across 6.6–1312' for fast verification of runs
• Simple network cable tester functionality for on-site verification of cabling and pair integrity
• Portable, field-ready design for installers and technicians working on security, surveillance and IT systems
• Streamlines low-voltage and monitoring deployments by confirming cable integrity before commissioning