The mobile pressure-resistant water tightness testing equipment utilizes tap water as the primary testing source to conduct high-pressure sealing and water pressure resistance testing on the inspected products. The testing platform is controlled by a PLC and features a 7-inch touch screen display in Chinese. It adopts a convenient mobile testing approach, facilitating the testing and docking of large products. The testing equipment utilizes wear-resistant silicone as the sealing component, and employs a high-precision pressure transmitter to assess the product's sealing performance based on pressure variations and the resulting upper and lower pressure limits within the product. The fixtures are designed according to customer-provided product designs, achieving a versatility of over 90% for diverse products. If the test is successful (OK), the system automatically proceeds to the next testing step; if not (NG), the corresponding indicator light illuminates, accompanied by an audible and visual alarm. The components used in the testing equipment are sourced from both imported and renowned domestic brands, ensuring stable and reliable operation. The operation is simple and convenient, and relevant test data can be exported via USB.