March 3, 2025

The purpose of this article is to comprehensively explain the waterproof rating of electronic products (IPX7 to IP69K), and introduce the law of airtightness testing equipment selection. Through case studies, the article demonstrates the importance of waterproof grade to product reliability, explains the logic of IP protection level, and compares the standards, application scenarios and testing difficulties of each waterproof grade in detail. At the same time, it puts forward a five-step selection rule to help enterprises efficiently select, and shares the successful cases of Jingcheng Industrial Technology, highlighting its professional strength in the field of airtightness testing.