Precision Portable Current Tester for Automotive and Household Use Accurate Current Measurement: Designed for precise detection of standard current in household and commercial vehicles, this tester can identify even the smallest current changes. This allows for quick and reliable fault detection, helping you pinpoint issues before they escalate. BuiltIn Work Light for LowLight Environments: Equipped with a frontfacing light, this 12V car relay tester ensures maintenance and testing can be performed safely in dark or poorly lit areas. Ideal for nighttime repairs or work in confined spaces where lighting is limited. Wide Application Range: Suitable for everything from diagnosing minor electrical issues in cars to handling complex circuit inspections in commercial trucks. The compact and lightweight design makes it easy to carry and operate across different working environments. EasytoRead Display: Featuring a blue LCD screen, current readings remain clear and visible in both strong daylight and lowlight conditions. The combination of the front light and backlit display ensures uninterrupted visibility of both your work area and test data, day or night. Practical Scenarios: 1. Detect and diagnose battery drain in a family car before it causes starting problems. 2. Perform routine electrical system checks on commercial trucks to prevent costly downtime. 3. Troubleshoot lighting or accessory malfunctions during roadside repairs at night. This 20A 48V car relay blade checker is a compact, userfriendly, and reliable tool for professional mechanics, automotive electricians, and vehicle owners who require accurate current measurement and dependable performance in any lighting condition.