Black Box Net Tone - Continuity Testing, Voltage Monitor, Twisted Pair Cable Testing - Twisted Pair - 2Number of Batteries Supported - Battery Included - TAA Compliant

Make connections to RJ-11 and RJ-45 jacks and to any wire pair using alligator clips. A must-have tool when you are working in a telco or network environment. Trace and locate cable ends by placing the Tone Generator on one end of the cable and the Tone Probe on the other.