Patent ID: 7839133

Claim:
An electrical continuity test system, comprising: a) a tester, comprising: circuitry configured to provide a pulsed current made up of a plurality of current pulses; an output terminal coupled to the circuitry and configured to couple to a local end of a first test conductive element to provide the pulsed current into the first test conductive element; an input terminal coupled to the circuitry and configured to couple to a local end of a second test conductive element; a visual and/or aural indicator coupled to the circuitry and configured to indicate if the pulsed current is present on the second test conductive element; wherein the circuitry comprises a timer circuit having a first terminal coupled to a positive terminal, which is couplable to a battery, and to the output terminal of the tester, and having a second terminal coupled to the input terminal of the tester; and an opto-isolator having first and second input terminals coupled to the input terminal of the tester, and a first output terminal coupled to a terminal of the visual and/or aural indicator; and b) a remote probe, comprising: a probe input terminal configured to couple to a remote end of a first unidentified conductive element; a probe output terminal configured to couple to a remote end of a second unidentified conductive element; a first visual and/or aural indicator coupled to the probe input terminal and the probe output terminal; and a second visual and/or aural indicator, different from the first visual and/or aural indicator, coupled to the probe input terminal and the probe output terminal, wherein the first and second visual and/or aural indicators are configured to indicate if the first unidentified conductive element is the first or second test conductive element when the first and second unidentified conductive elements are the first and second test conductive elements, the probe input and output terminals are coupled to the first and second unidentified conductive elements, and the input and output terminals are coupled to the first and second test conductive elements.