The Klein tools Probe-PRO Tracing Probe traces open-ended non-energized wiring when used with Toner-Pro Tone Generator (VDV500-063, sold separately), It is responsive and durable with a replaceable non-metallic conductive tip, Features a work light for use in dark spaces and 3.5 mm headphone jack for noisy environments (headphones not included), Terminal block on probe to confirm the toned pair has been located, One push power button with power-on LED indicator, Battery saving features with auto power-off and low battery indicator, Includes 4x AAA batteries and a loop for a lanyard
