- OPEN & SHORT CIRCUIT FINDER & WIRE TRACING:AL100 automotive circuit tracer powered by 2pcs 9V batteries performs easily locating open circuits, broken wires, bad connections, and current leaks with tone change — even trace wires without damaging insulation. Perfect for DIYers, mechanics, and home users to quickly diagnose 6-42V DC systems in cars, motorcycles, RVs, trailers, and boats. NOTE: DC only, never exceed 42V.
- LOCATING OPEN CIRCUIT & BREAKER POINT EFFICIENTLY:Simply set Sender to “TONE”, sweep the Receiver’s probe perpendicular (90°) above or below the wire — the audio signal stops exactly at the open or break point. Adjustable sensitivity helps you work in crowded wire bundles. Double-check by testing before and after the suspected spot. No more guessing where the wire is broken.
- CHECKING SHORT CIRCUIT & CONTINUITY:Set Sender to “CONT” mode, remove all loads from the wires, then connect the test leads. If the green LED lights (resistance <10kΩ), the two wires are shorted. Ideal for verifying fuses, switches, relays, and cable integrity before deeper repair. Simple pass/fail indication — no complex settings.
- NON-INVASIVE WIRE TRACING & FLEXIBLE PROBE:Bend the coiled-steel probe to reach wires behind dashboards, under carpets, or inside engine bays. Trace hidden wires without stripping or piercing insulation. The audio tone gets louder near the wire and fades when you move away — fast, safe, and professional.
- PERFECT GIFT FOR MECHANICS, DIYERS & HOME USERS:Whether you’re a professional auto electrician, a weekend mechanic, or a family member who loves fixing cars, RVs, or boats — the AL100 saves hours of electrical troubleshooting. Compact, battery-powered (2x9V included), and ready to use. Give the gift of confidence in every repair. (Always follow vehicle manual: max 42V DC, no AC, no ignition system.)



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