Features: The mobile phone charging detector can accurately monitor and display the charging state of the mobile phone, including key parameters such as current, voltage and power. With precise measurement function, can automatically identify the charging type, support a variety of charging interfaces, portable and easy to use, suitable for a variety of mobile phone brands and models. It is suitable for all people who use mobile phones, especially business people, traveler and students who often need to recharge. Can be used at home, office, travel, school and other places, Help users understand the quality and efficiency, and protect the charging safety of the mobile phone. Specifications: Material: ABS Voltage: 4-30V Current: 0-12A Count Time: 0-99 Hours Power: 0-360W Capacity: 0-99999MAh Size: Approx. 38x16.5x9mm/1.50x0.65x0.35in Package Includes: 1x USB C Voltage Current Tester note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.