WL-005 DUOYI DY23B is used as Automotive Brake Hydrology Tester. This device is designed to measure hydraulic pressure in automobile brake systems. It is commonly used in car repair shops, service centres and the automotive industry. The DY23B model is usually equipped with a precision sensor to accurately measure the hydraulic brake system pressure. This is important for assessing the health and reliability of the brake hydrological system. The instrument usually has a user-friendly interface and an easily readable display, which allows operators to interpret results in a simple way.