1. Quickly checks whether inductors on mobile phone motherboards are functioning properly, helping technicians locate faults in seconds. 2. Utilizes high-precision electromagnetic sensing to provide stable, reliable, and non-contact inductance detection. 3. Simple press-and-test design allows for fast diagnostics with minimal training, improving repair efficiency. 4. Powered via a standard USB Type-C connection, making it convenient to use with USB adapters, power banks, or repair bench power supplies. 5. Lightweight, pen-style design fits easily into any repair toolkit, making it ideal for repair shops and on-site maintenance.