Main Functions:

Wire Tracing: Trace RJ11 & RJ45 cables or other metal wires (via adapter). Easy and fast to locate the the break or fault without the need to open the wire's cover.

Network Cable Collation: Determine short-circuit, circuit break, open and cross circuit.

Test line level, positive and negative polarity.

Test telephone line status: Test the working status of telephone lines (idle, ringing, and off-hook), and judge TIP and RING line.

Check wire continuity.