6V/12V/24V Automotive Current Tester Practical Test Pens Car Diagnostic Examination Tools Auto Mechanic Mechanical Workshop Tool

Description

– **Clear LED Digital Display**: High-visibility LED screen shows voltage readings with 0.1V resolution and ±0.5V accuracy; readable in both bright daylight and dark environments (unaffected by light intensity, unlike LCD displays).
– **20-Inch Extended Spring Wire + Large Alligator Clip**: Flexible 20-inch spring wire expands measuring range; anti-bending tail design ensures stable contact. Oversized alligator clip enables easy one-handed operation.
– **Bidirectional Polarity Indicator**: Built-in dual-color LED (red = positive polarity, green = negative polarity) for quick polarity identification. Compatible with both negative and positive ground systems—simply clamp to one terminal and probe the other.
– **Circuit Protection & Durability**: Integrated circuit board chip with line protection (safer and more burn-resistant than traditional test lights); insulated protective cover enhances grip and prevents electric shock.
– **Versatile Applications**: Sharp, long probe pierces wires and accesses narrow spaces. Ideal for testing automotive electrical circuits (headlights, taillights, turn signals, fuses, sockets, and broken wires) for daily vehicle maintenance.