Guan Ying-professional leak (leak detection, leak test, detector, leak detectors, leak detector, air-tightness instrument) development, and manufacturing, food beverage pharmaceutical plastic packaging metal glass ceramic electric car motorcycle petrol pipe airtight testing. This aircraft structure simple, elegant, easy to adjust, stable operation. Using single-chip microcomputer control board control, intuitive digital display detecting process, you can set the process parameters, high detection sensitivity, detection of micro-leakage risks to critical. Eliminate the packaging container leaks caused by trachoma occurs during the manufacturing process, packaging has been used to detect gas tightness of the election. Test speed up to 1.5-2.3 s/a, to check capacity 5ML-200L plastic bottle cover.