This high-voltage circuit tester is designed to check automotive circuitry, domestic wiring, and electronic equipment. It is specifically designed for testing 6V-1,000V DC systems and 24V-1,000V AC systems. The tester features an easy-to-read LCD digital display, including a bar chart displaying voltage ranges of 6, 12, 24, 50, 120, 230, 400, 690, and 1,000V. Additionally, it includes a self-test function, a light for illuminating the test point, and an insulated and sharpened probe for accessing circuits and switches with adjustable covers. This tester is suitable for use with most hybrid and electric cars, motorcycles, commercial vehicles, trailers, boats, and agricultural vehicles. Requires 2 x AAA batteries (available separately).