All In One Cable Tester And Line Finder With Probe Tone For RJ45 And RJ11 Cables, Wire Tracker For Ethernet LAN Cat5 Cat6, Quickly Detect Open Circuits, Shorts, Wrong Pairs, Reverse Wiring, And Trace Lines In Blue

Network Cable Tester with Tone Probe for RJ45/RJ11 Lines
✔️ Single pack: detects cable sequence, open/short, wrong pair, polarity

This multifunction handheld tester helps IT and telecom pros identify and trace RJ45/RJ11 cables, test telephone lines, and verify Ethernet LAN networks, including Cat5 and Cat6, in data centers, offices, and service calls.

✅ Cable sequence calibration: detect open/short/wrong pair and reverse connection on RJ45/RJ11
✅ RJ11/RJ45 cable tracking via transmitter to find lines without stripping jacket
✅ Telephone line status detection: idle, ringing, off-hook with TIP/RING discrimination
✅ Detect DC level and positive/negative polarity; transmitter undervoltage indicator SCAN

💡 What is a network cable tester with tone probe used for in telecom and data networks?

This handy tool helps trace lines, verify connections, and diagnose issues in LAN and phone systems. - Traces RJ45/RJ11 cables without jacket removal
- Verifies cable sequence and detects open/short/wrong pair
- Detects telephone line status and line polarity