Ideal for engineers, enthusiasts, and users who need accurate charging diagnostics for smartphones, tablets, or USB power devices during repairs or optimization. Compact size fits a workshop or home office setup, allowing you to monitor charging outputs and troubleshoot battery drain without complex setups. Built with a protective ABS housing, this portable USB current/voltage detector delivers diagnostics for adapters and mobile accessories through plugandplay operation. Current and voltage visualization helps optimize charging speeds and ensure safe electrical performance across multiple gadgets. Key attributes Function: USB current and voltage detector for diagnostics of chargers, adapters, and mobile accessories; plugandplay operation. Compatibility: Supports smartphones, tablets, USB power gadgets, adapters, and various mobile accessories. Size: Compact and portable, suitable for workbench or desk use. Material: Protective ABS housing for durability. Performance: Realtime current and voltage visualization to aid charging optimization and crossdevice safety. Use scenarios In a workshop, validate charger output and device charging behavior while servicing a smartphone or tablet to identify slow charging or inconsistent power delivery. At a home office, compare multiple USB chargers and cables to determine which combination delivers the charging speed and minimizes unexpected battery drain. Onsite or field service, test USB adapters and power banks across different devices to ensure consistent performance and protect devices from over or undervoltage conditions.