TRENDnet’s TC-TP1 Network Probe is an easy-to-use amplified inductor and tone probe used for tone tracing and line testing. It features a simple push button that provides easy operation and conserves battery power. This device comes with adjustable volume control and signal LED for enhanced accuracy in noisy environments. It also includes a Ring/Tip polarity test indicator. When combined with a compatible Tone Generator, a technician can quickly locate, isolate and test commonly used voice and data cables swiftly and efficiently.