Tone Generator & Probe Kit - Pro'sKit 400-011

Amplifier Probe:
Use to quickly trace and identify wires or cables, even when they are in a bundle.
Probe can work with any tone generator on the market.
Adjustable Volume level (1-9) for various work environments.
9V batteries (not included) provide up to 100 hours of use.
Earphone jack provided for headset.
Signal LED for strength indication

Tone Generator:
Red/Black testing leads with alligator clips
RJ-11 (6 position, 4 contact) standard modular jack
3-Position mode switch (OFF, CONT, and TONE)
3 LED displays (CONT, TONE and Low Battery)
Single solid tone or dual alternating tone output (preset in unit)