Air leakage tester adopts the latest foreign microcomputer chip, high-precision sensors and zero-leakage solenoid valves to ensure the accuracy of the detection results and the durability of the instrument. Microcomputer automatic control of the detection process and data collection, the use of the latest algorithms and specialized software to analyze and process the data, the maximum degree of compensation for the detection process of temperature (including ambient temperature) and other effects. Overcome the external interference, realize the direct pressure difference leakage detection, detection results are intuitive, with a high performance-price ratio, is the ideal equipment for many airtightness testing.