Benefits Extendable spring cable provides flexible reach for any electrical system, making it easier to access hardtoreach test points. Realtime voltage display is uninterrupted and updates continuously, enabling quick, informed decisions. Copper probes pierce wire insulation easily to check circuits, useful for car wiring and other 12V systems. Compact and lightweight design is powerful yet comfortable to hold, similar to holding a pen, for precise control and reduced hand fatigue. Features 12V test light and probe tester Extendable spring cable for versatile use in tight spaces Uninterrupted, realtime voltage display Copper probes designed to pierce insulation for circuit checks Suitable for automotive testing and general electrical system checks Portable, penlike form factor for comfortable handling Specifications Voltage: 12V Cable: extendable spring cable Probes: copper Applications: checking circuits and wiring in cars and other electrical systems Design: small and light, easy to hold and maneuver Use scenarios Incar circuit inspection: reach connectors and wiring harnesses with the extendable cable, verify 12V presence, and observe realtime voltage readings for quick assessments. Automotive electrical checks: test wiring and circuits in engine bays or dashboard areas where space is limited, using the piercing copper probes for efficient access. Portable field testing: work in tight or awkward spaces while maintaining control and comfort due to the compact, penlike design.