Jonard Tools TEP-200 Tone Tracing Probe

PREVENTS DAMAGE: Plastic probe tip prevents accidental shorts, VERSATILE USE: Able to trace tones or check the polarity of many 6P2C/4P2C telephone jacks, VISUAL INDICATOR: LED light provides a visual indication of signal strength, INCLUDES: TEP-200 Tone Tracing Probe, and (1) 9V battery included for operation.