The Pro3000 Analog Tone Generator and Probe is ideal for cable tone testing and tracing in inactive networks, especially for identifying individual pairs with SmartTone technology. Angled banana plugs and insulated piercing clips make accessing individual wires easier, and the RJ11 connector is perfect for use with telephone jacks. Thanks to the powerful speaker of the network probe, you can hear signals through drywall, wood, or other coverings, allowing you to quickly and easily locate wires. You can send this loud tone up to 10 miles (16 km) on most cables. The device's nylon pouch conveniently fits on your belt, ensuring you are well-equipped for any wire labeling task.