1. Accurately tests smartphone waterproof sealing (IPX level) without damaging the device. Suitable for pre- and post-repair inspection. 2. No need to open the device or remove any components. Quickly identifies leaks via internal air pressure monitoring. 3. Equipped with a precision pressure sensor and smart microcontroller for fast, reliable, and stable test results. 4. Compatible with various brands and models. 5. Compact design with a user-friendly interface. No technical background required—ideal for mobile repair shops and QC departments.