Tempo 701K Tone and Probe Kit When it comes to wire identification, there’s no better tool to have then the Model 701K. This popular kit is used by technicians everywhere. The 701K is used to identify single conductors or cables within a bundle, at a cross-connect point or at remote ends. The kit consists of the 77HP High Power Tone Generator, the 200EP Inductive Amplifier and the rugged 700C woven polyester carrying case. All kit components are available individually.