Monoprice Tone Generator with Probe Kit - Monoprice.com
Tone Generator Kit, Wire Tracer Circuit Tester, Tone Tracing Probe Kit, 200EP High Accuracy Cable Tester, Line Finder Toner Inductive Amplifier Variable Tone Generator for Network Cable Collation: Amazon.com: Industrial & Scientific
Tone Generator, Amplifier Probe Tool for RJ-11: Amazon.com: Industrial & Scientific
72-8500 Tenma, LAN Tester and Probe Set with Built-in Tone Generator | Farnell Denmark
C2G Tone Generator and Probe Tracer Kit - 26844 - Network Testing - CDW.com
Amazon.com: Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit : Industrial & Scientific