Function: A and cable tester which can help you find and trace buried and hidden wires. Perfect for installation, debugging, maintenance of telephone line and other wires or cables. Does not damage the insulation layer: The cable tracer consists of One transmitter and one receiver, detects cable or wire continuity without damaging insulation, traces cables or wires, and diagnoses breakpoints. Network Cable Check : receive audio signals through cables or wires (telephone lines), identify the state of the working telephone line (idle, ringing, off-hook), no need to call or spend more, you can yourself and fix it. Easy to carry: It can be reused and is durable. Comes with a bag, which can be stored well, avoiding dust and collision. Cable tracker small, light, easy to carry. Package includes: 1 transmitter, 1 receiver, 1 test cables, 1 carrying case and 1 manual (without battery). Product Description Circuit Tester, Cable Tracer and Tone Generator, RJ-11 Connector for Network Cable Tester, Wires and Cables This wire tracer and circuit tester - including transmitter/tone generator and detector - is designed to identify and trace any wire or cable without damaging insulation. Versatile A wire tester to help you find and trace buried and hidden wires. No need to call or spend more, you can find and fix it yourself. Safety First Check if the cable connection is continuous. Trace cables or wires and diagnose breaks. Detects the passage of cables without damaging the insulation. Easy to carry Small, light, easy to carry, long life, low power consumption, compact and safe . It can be reused and is durable. Comes with a bag, which can be stored well, avoiding dust and collision. Multi-function wire and cable finder Perfect for installation, debugging, maintenance of telephone lines and other wires or cables. Detect the continuity of cables or wires without damaging the insulation. Check if the cable connection is continuous. Trace the cables or wires and diagnose the break point. Receive the audio signal on the cables or wires (telephone line). Identify the condition working phone line (idle, ringing, off-hook). Send a single audio signal or a dual audio signal to the cables or wires of the object. Notice: The line under test must not be in an electrical state, otherwise the signal interference will affect the detection results. Scope of delivery: < p>1 x transmitter cable 1 x receiver cable 1 x RJ11 cable 1 x carrying bag 1 x manual instructions Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.