One Product Description: This instrument is a differential pressure air leakage tester used to check the airtightness of various products. By using the standard error correction function and temperature compensation function, high-precision and short-term testing that has been difficult to achieve in harsh environments for a long time has been solved. And it has strengthened the quality management function, channel function, and communication function. At the same time, it improves the differential pressure resolution and operational convenience, enabling automated testing of all test samples under different conditions. II Main features: Chinese display, parameter setting, and simultaneous display of test pressure, pressure difference, leakage rate, and monitoring of the entire leakage process; Four different testing channels and multiple independent detection parameters for different workpieces under the same pressure can be set simultaneously; The leak detection data acquisition function adopts digital transmission, high fidelity, high reliability, and high precision, with stable resolutions of up to 0.1Pa and 1Pa. The RS-232C interface output facilitates the storage, processing, and analysis of test data; The intelligent automatic leakage meter can automatically measure the equivalent content volume K (Ve) value (option), and store this value for actual inspection, converting the measured differential pressure into a leakage flow rate value (ml/min), making precise leakage measurement possible (manually input volume); The high brightness alarm function test has been completed, and the high brightness light prompt of the tester can clearly view the test results without causing visual errors. III Specification: Test pressure: 0-50KPa, 50-200KPa, 100-3000KPa, -100KPa, -0.1Pa, resolution: 0.1Pa/1Pa; Display unit: M