Digital multimeter with an internal 6F22 DC9V battery. Current measurement up to 20A. It can measure AC/DC current, voltage, resistance, capacity, and test quartz diodes and transistors. A reliable tool for DIY repairs. Cushion cover with a streamlined design and a comfortable, good touch. Complete protection function with a high voltage discharge ignition circuit design, delivering excellent anti-fire protection performance. Metal shield reduces magnetic interference and, with automatic shutdown, helps protect the batteries. Use scenarios - Automotive electrical troubleshooting: measure battery voltage, monitor current up to 20A, test diodes and transistors in regulators and power circuits. - Home electronics repair: check resistance, voltage, current, and capacity; test diodes and transistors in power supplies and boards. - DIY projects and maintenance: perform quick circuit checks, verify component performance, and rely on the meter’s protection features for safer operation.