• Network cable verification: Receives audio signals through cables or wires (telephone lines) and allows identifying the status of the telephone line (inactive, ringing, off-hook). Ideal for installing, debugging, and maintaining telephone lines and other cables. • Versatile: 100% new and high-quality cable tester that helps find and trace buried and hidden cables. If the break point is not detected, please refer to and use the cable tracker user manual. • Easy to carry: Reusable and durable. Small, lightweight, and easy to carry. Includes a bag for proper storage, preventing dust and collisions. • Simple operation: Sends a unique or dual audio signal to the object's cables or wires. The line detector can trace cables or wires and diagnose the break point. • Does not damage the insulation layer: Detects the passage of cables or wires without damaging the insulation layer. Verifies cable continuity, traces cables or wires, and diagnoses break points. • Transmitter dimensions: 145 x 35 x 25 mm • Receiver dimensions: 238 x 43 x 26 mm • Total weight: 0.22 kg