Power Probe Master Combo Kit w/ Circuit Tracer Supplies Power and Ground. Engineered to work on all 12-24VDC systems. Easy to read backlit voltmeter reads voltage in 1/10th volt. LED's Indicate Direction to a Short Circuit. Tone Signal Injection & Wireless Tracing. Makes locating shorts and open circuits easier. Various Lengths 10 Gauge Leads and 4mm Gold Plated plugs & jacks. Multi Strand Flexible Insulated Test Leads & Stackable 4mm Banana Plugs. Includes:. Power Probe III Circuit Tester (PP319FTC). Intelligent Open/Short Circuit Tracer (ECT3000). Gold Series Lead Set (PPLS01) PPKIT03S