Greenlee 200B-G-BOX Tone Probe Amplifier Kit - Basic Cable Tracer for Network & Telecom Wiring - Perfect for Electricians & IT Professionals

From the Manufacturer Greenlee's tone probe amplifiers used in conjunction with any tone generator, Tone Probe Amplifiers permit wire and cable identification without having to make direct metallic contact with the conductor. All models feature a powerful speaker for noisy environments, recessed on/off button control and high gain for accurate wire identification in congested cable bundles and equipment rooms.