Description [led display, easy to read] Power supply test kit, with voltage LED digital display, is used for accurate voltage indicators. In the biaxial stress test mode, the crocodile grip can be fixed on negative or positive mass. Red light indicates positive polarity, and green light indicates negative polarity. Compared with LCD screen, LED indicator is not affected by brightness, and can be read accurately in daytime or dark areas. [Safer and more durable] Equipped with clean copper clips and insulating protective covers, it can better grasp the shell and screws to prevent electric shock. The printed circuit board with driver protection function is safer and more resistant to burning. [ Easy to use and transport], equipped with polyurethane spring steel wire with a mass of more than 60cm, and equipped with large alligator tongs, which is easy to operate with one hand. Cutting-edge stainless steel probe with rubber protective cap can penetrate electric wires even in difficult-to-enter areas. Compared with cable, spring wire is lighter and more portable. [Widely used] This high-performance professional test pen is used to test the continuous voltage of 3 ~ 24v for motor vehicles, which is very suitable for verifying the vehicle voltage values, positive and negative electrodes, circuits and cables of automobile batteries and marine batteries. technical specifications and specifications: 1. 3-24 V, widely used for testing circuit voltage and channel. S7-1200 programmable controller. LED digital display screen with accurate voltage indication, with resolution ratio of 0.1v and accuracy of 0.5V. 3 In the biaxial stress test mode, the crocodile grip can be fixed on negative or positive mass. S7-1200 programmable controller. Indicates the polarity of LED, with red light indicating positive polarity and green light indicating negative polarity. S7-1200 programmable controller. Equipped with a sharp stainless steel probe and rubber protective needle, it can penetrate electric wires even in narrow and inaccessible areas. 6 High-quality 60cm polyurethane spring steel wire, equipped with large alligator tongs, easy to operate with one hand. S7-1200 programmable controller. High-performance testing subject of high-quality materials. delivered quantity: 1 piece