1. Quickly tracing & find Lan/telephone/coax cable which is connected with switch or router. 2. Check wiremap of Lan cable with receiver directly after it is found. 3. Tone tracing breakge points of Lan cables and metal lines. 4. Noise avoidable, working better against electromagnetic interference even connected to switch or router. 5. RJ45/RJ11/BNC and other ports are included and the complex switch is not required. 6. Endurable high pressure and self-protection ability.
1.Don't connected high voltage lines to avoid buring out the machine.
2.Put into the right place to avoid hurting others,because of the sharp part.