•The tester is comprised of a Tone Generator and an Amplifier Probe with sensing tip. The Amplifier Probe is used to detect the presence of the tone on a wire that was sent by the Tone Generator. This can be used to detect continuity in a single wire and can test for breakage points along a wire's length. Additionally, it can be used to identify individual wires within a bundle. The insulated inductive probe tip prevents shorting conductors.
•The Tone Generator unit has a (3) position toggle switch that turns the unit on in "Tone" or "Continuity" mode. A metal sheath around the switch prevents it from being accidentally turned on or off.
•A 3-colour LED is used to indicate line polarity, continuity, and phone line condition
•The Amplifier Probe unit has an adjustable volume control, a speaker, and a 3.5 mm headphone jack for multiple sound options
•Both the Tone Generator and Amplifier Probe units are constructed of plastic and are powered by a 9V battery(Two 9V alkaline batteries are included)

•To test the line, a pair of red and black leads with alligator clips plus an RJ11 4-conductor wire and plug is attached to the Tone Generator unit.

•Tone Generator
•Amplifier Probe