This model precision leak detector is specially designed for the 180-200 liters drum, semi-auto test, 8 inches of color touch screen, convenient operation. Data variable precision, candetect the micro leakage of variable value in 10-20 seconds. Germany Siemens PLC controller, stable, durable, and adopts the MOTOROLA brand high pressure double channel pressure sensor, high sensitivity, timely detect micro leak products, to enhance the quality control.