This tester is an indispensable tool for your daily vehicle repairs and maintenance. The measurement ranges of 3-60V direct current can be applied to more types of vehicle types, such as 6 V, 12 V, 24V, 48V automotive electrical systems. Features: The measurement ranges of 3-60V direct current can be applied to more types of vehicle types, such as 6 V, 12 V, 24V, 48V automotive electrical systems. The LED indicates the function of the positive and negative poles, red light indicates positive polarity and green light indicates negative polarity. The probe guard can effectively avert the probe from being lost, and it can also effectively avert accidental stabbing by the probe. The length of the extended spring wire can reach 2.6 meters, which is more convenient to use and less restricted. Wide applications: This tester can be used for check the battery of car, trucks, forklifts, yachts, electric car, motorcycles and so on. Specification: Material: plastics+rubber+stainless steel Voltage measuring ranges: 3-60V Resolution: 0.1V Operating temperature: 0-50 Working humidity: 80% Package size: 280 x 50 x 50mm / 11.0 x 2.0 x 2.0in Package weight: 120g / 4.2ounce Package included: 1 x Voltage Circuit Tester