- Wide Application: This professional automotive circuit tester operates within a 2.6-32V DC voltage range, making it perfect for diagnosing electrical circuits in various vehicles. Quickly check automotive headlights, taillights, turn signals, faulty sockets, fuse connections, and other 2.6-32V DC wiring and circuits. - Accurate Digital Readings: Equipped with a digital LED display, this tester provides precise voltage readouts with a 0.1V resolution and 0.3V accuracy. The LED display is clear and visible in all lighting conditions, ensuring easy readings both day and night. The LED circuit board consumes less current than traditional test lights, enhancing safety and reducing the risk of damage to automotive computer boards. - Bidirectional Voltage Testing: The alligator clamp can be connected to either negative or positive ground, offering flexibility during testing. A built-in light-emitting diode on the circuit board indicates polarity: a red light signifies positive polarity, while a green light indicates negative polarity. - Durable Construction: Featuring a sharp stainless steel probe for piercing wires, this tester is designed for hard-to-reach areas. The insulated rubber tip provides protection against electric shock. Its heavy-duty body is made from high-quality ABS material, ensuring durability and shatter-resistance compared to standard test lights. Use Scenarios: 1. Quickly diagnose a vehicle's lighting system by checking the voltage of headlights and taillights to identify faulty bulbs or connections. 2. Test fuse connections and sockets to troubleshoot electrical issues in both automotive and other 2.6-32V DC applications. 3. Utilize the tester in tight spaces under the dashboard to ensure all wiring is functioning correctly without risking damage to sensitive components.