Fluke Networks 26100900 Pro3000 Analog Probe
The Fluke Networks 26100900 Analog Probe is your best choice for toning and tracing wire on non-active networks, and specifically for identifying individual pairs with SmartTone Technology. Used with the Pro3000 Tone Generator (044x024, sold separately), you can tone and trace wire on non-active networks. Loud speaker on the probe makes the tone easier to hear through drywall, wood and other enclosures. You can send tone up to 10 miles on most cables.
The probe includes a "Quick-twist" tip for easy field replacement. Eighteen-month warranty.