Features: The measurement ranges of 3-60V can be applied to more types of vehicle types, such as 6 V, 12 V, 24V, 48V automotive electrical systems. The product has illumination function and can be used normally at night. The screen with backlight also allows you to read the values more easily. The LED indicates the function of the positive and negative poles, red light indicates positive polarity and green light indicates negative polarity. The waterproof rating is IP66, so you don\'t need to worry about using it in rainy weather, and it has a long service time. The probe guard can effectively avert the probe from being lost, and it can also effectively avert accidental stabbing by the probe. The extended spring line can be about 3.6m, it is more convenient to use and less restricted. Wide applications: Suitable for dry battery, boat vehicle, car battery, truck battery, motocycle, industrial behicles, tractors battery, industrial vehicle and so on.