Lyercw Automotive Circuit Fault Probe Tester – 20A/48V, 2-in-1 Wire Tracer, LED Display & Front Light

The Lyercw Automotive Circuit Fault Probe Tester is designed for on-vehicle diagnostics, delivering real-time current readings up to 20A at 48V. By tracking even subtle current fluctuations, it helps pinpoint circuit faults with clear, actionable data, supporting faster, more reliable troubleshooting across a range of automotive electrical systems.

The blue backlit LCD provides crisp readings in bright daylight or shaded environments, and the built-in front light illuminates the work area for nighttime maintenance. This combination enhances visibility and safety during on-vehicle tests, making it easier to work accurately when lighting is challenging.

Key benefits at a glance

• High-Precision Measurement: Real-time current readings help identify subtle fluctuations, improving diagnostic efficiency across different vehicle systems.
• Clear Readouts in All Lighting: The blue LCD stays legible in bright or low light, with an integrated headlight for night work.
• Portable and Versatile: Lightweight and compact for mobile diagnostics, busy shops, or outdoor maintenance scenarios.
• Rugged and Durable: Ergonomic design with waterproof construction for reliable use in demanding environments.
• Easy to Use: Simple steps—remove the blade fuse, insert the safety plug, and plug into the fuse socket (max 20A/48V)—to begin testing.

Versatile use cases

• On-site diagnostic checks for vehicle electrical circuits to locate faults quickly.
• In-shop troubleshooting with reliable current readings for efficient repairs.
• Nighttime maintenance tasks where visibility is limited, thanks to built-in lighting.

Designed for professional garages and mobile technicians, this tester's compact form fits easily in a toolbox or service van. The sturdy build supports daily use in damp or busy workshop environments. Its 2-in-1 design integrates wire tracing and short finding capabilities into a single, convenient tool, helping technicians confirm circuit paths and identify abnormal connections with confidence.

Note: This device provides data to guide troubleshooting and does not guarantee a specific outcome. Use the readings as part of a broader diagnostic process and refer to vehicle service manuals for proper procedures.