Features：
1. Presets battery pack parameters such as: volume, pressure, stage testing time, leakage limit, etc.
2. High-sensitivity pressure sensing, high testing accuracy and stability.
3. Equipped with a pressure gauge to display real-time pressure curve during the process, making the testing process clear at a glance.
4. Supports multiple languages, including: Traditional Chinese, English, German, French, Japanese, Spanish, Portuguese, Italian, etc. Low-pressure Airtightness Testing Theory Testing Theory
Function：
