Multifunctional circuit tester for automotive and commercial vehicle circuits. This device is designed to measure current within standard bladetype fuse boxes. Key benefit: Enables quick current measurement in fuse boxes to diagnose electrical issues across automotive and commercial vehicle circuits. Easy readings: Blue backlit LCD display for clear measurement data in low light conditions, improving usability at night or in dim environments. Builtin lighting: Integrated headlight provides illumination for maintenance tasks in dark areas and can double as a small work light when needed. Design and aesthetics: Modern, functional design with a dynamic and colorful appearance that combines practicality with visual appeal. Compatibility and performance: Specifically designed for standard bladetype fuse boxes in automotive and commercial vehicle circuits, delivering readable results in various lighting conditions. Use scenarios: Car maintenance: Measure current in the fuse box to identify overloads or diagnose electrical issues. Nighttime or dim garages: Use the blue backlit LCD and builtin headlight to read measurements and perform work more comfortably. Commercial fleets: Inspect electrical circuits in trucks or vans that use bladetype fuses to verify current draw and diagnose faults.