About This

• 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,Do NOT use on AC or ignition systems.
• Locate Open Circuits & Breaker Points Effortlessly – The CONT mode on the transmitter tests for continuity or breaks in a wire. Just set the transmitter to TONE, then sweep the receiver's probe perpendicular (90°) above or below the wire. This makes it quick and easy to find open connections, broken wires, current leaks, and trace wiring paths. The adjustable sensitivity lets you work confidently even in crowded cable bundles. For extra certainty, test both before and after the suspected break point. No more guesswork – pinpoint the fault instantly.
• CHECKING SHORT CIRCUIT & CONTINUITY：Quickly pinpoint short circuits, loose connections, and intermittent faults by listening to the receiver’s tone change as you move along wires – no insulation damage. The adjustable sensitivity and 7‑inch flexible probe let you work in tight bundles and hard‑to‑reach areas. For best accuracy, scan step by step and let the tone guide you to the exact fault location.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.)
• Important Usage Notes:This tool comes with 2 pieces of 9V batteries included, ready to use,one for the transmitter and one for the receiver. If the receiver volume seems low, it is usually due to a weak signal—please move the probe to an area with a stronger signal and turn the sensitivity knob to the maximum setting. We also recommend regularly checking the battery level, as insufficient power can directly affect detection accuracy and sound feedback. When not in use for an extended period, please switch the power button to the "OFF" position or remove the batteries to prevent leakage or power drain.

Overview

• Brand : AERMOTOR
• Power Source : Battery Powered
• Style : Classic
• Color : black
• Item Weight : 6.56 ounces