EM415PRO Automotive Short & Open Circuit Finder Wire Tracer

Find Short Circuits & Broken Wires Fast — No Wire Piercing Required

The EM415PRO Automotive Short & Open Circuit Finder is a professional-grade wire tracing tool designed to help mechanics, auto enthusiasts, and DIYers quickly locate short circuits, open connections, broken wires, current leaks, and intermittent faults — all without cutting or piercing wire insulation. Whether you're working on a car, truck, RV, boat, or tractor, this tool saves you hours of frustrating diagnosis time.

Simply connect the transmitter in series with the circuit under test, then scan with the flexible receiver probe to pinpoint exactly where the fault is. The built-in direction indicator even tells you which way to move toward the problem — no more guesswork.

Made in Mainland China.

Key Features

• Locate short circuits & open connections quickly and accurately
• Trace wires non-invasively — no wire piercing needed, non-contact technology
• Wide voltage range: works on DC circuits from 6V to 42V (12V & 24V vehicles supported)
• 42V Ready — compatible with the latest generation of mixed or single 42-volt vehicle systems
• Direction indicator shows you exactly which way to trace toward the fault
• 7" flexible coiled-steel probe reaches wires in tight, congested, or hard-to-access areas
• Adjustable sensitivity for all tracing situations
• Transmitter & Receiver LEDs visually indicate open or short circuit conditions
• Internally protected against power surges and overloads
• Trace wires inside bundles, conduits, behind panels, under carpets, and through upholstery
• Works on automobiles, trucks, tractors, RVs, boats, and more
• CE certified

What It Does

• Wire tracing through walls, panels & bundles
• Short circuit detection & location
• Open circuit location
• Wire identification
• Continuity checking
• Telephone line tone signal reception

Specifications

• Model: EM415PRO / Automotive Short Cable Tracker
• Operating Voltage: 6V – 42V DC
• Power: Two 9V batteries (NOT included)
• Probe Material: Coiled steel, flexible 7"
• Dimensions: 25.5 cm (L) x 12.5 cm (W) x 3.5 cm (H)
• Weight: 0.3 kg
• Certification: CE
• Package Includes: 1 x Automotive Short & Open Finder (Transmitter + Receiver)

How to Use the Probe

The receiver probe is built with flexible coiled steel and can be bent as needed to reach wires in tight or difficult areas. For the best signal pickup, position the probe tip (black cap) perpendicular (at 90°) to the wire being traced, either above or below it. Adjust the sensitivity dial as needed for your specific circuit and environment.

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Safety & Standards Reference

For information on electrical safety standards and best practices when working on automotive circuits, refer to guidance from the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Electrical outlet tester

Frequently Asked Questions

Q: What vehicles is the EM415PRO automotive short circuit finder compatible with?

A: This tool is compatible with virtually any DC-powered vehicle or equipment operating between 6 and 42 volts, including cars, trucks, SUVs, RVs, boats, tractors, and motorcycles. It supports standard 12V and 24V automotive systems as well as newer 42V systems.

Q: Do I need to cut or pierce the wire insulation to use this circuit tracer?

A: No — this is one of the biggest advantages of the EM415PRO. It uses non-contact technology, meaning you simply scan the outside of the wire with the flexible probe. No wire piercing, no insulation damage, no risk of creating new faults during diagnosis.

Q: Are batteries included with the automotive short & open finder?

A: No, batteries are not included. The tool requires two 9V batteries to power the transmitter and receiver units. These are standard batteries available at any hardware or grocery store.

Q: Can this tool find intermittent circuit faults?

A: Yes! You can flex wires or connectors while the tool is connected and listen for a change in the receiver tone. This makes it especially useful for diagnosing intermittent circuit problems that are difficult to catch with a standard multimeter.