Description : 【Multifunctional】Our power probes perform continuity testing, open circuit detection, polarity testing, ground detection, component testing and voltage detection. Whether conducting routine maintenance checks or troubleshooting sudden faults, this automotive electrical tester delivers professional-grade data support, making it an essential tool for every car owner or repair technician 【DC 3.5-36V Voltage Range】This power tester supports testing of all 3.5-36V DC electrical systems, including sedans, pickup trucks, SUVs, motorcycles, construction vehicles, marine vessels, etc 【2 LED Lights & Storage Bag】Our automotive voltage circuit tester built-in 2 led lights, enabling work in dark environments.