- Clear digital display: The Automotive Test Light features a bright LED display that provides clear readings in any lighting condition. You can quickly view voltage numbers with a resolution of 1V. - Quick detection for multiple vehicles: Designed for fast testing of car battery voltage, this tool works across 3V to 48V systems, making it suitable for cars, trucks, SUVs, and marine charging systems. - Safe and durable design: Constructed from premium ABS material, the test pen is shatterproof and ergonomic, providing comfort and safety during use while allowing reliable battery meter analysis. - Use scenarios: - Quick check in a driveway or garage to verify a vehicle battery’s voltage before starting. - Maintenance or fault diagnosis to assess the charging system performance on cars, trucks, and SUVs. - Testing marine or other 3-48V systems to confirm battery readiness and charging status.