Low Air Permeability Tester employs cutting-edge technology to assess the air permeability of ultra-low thin sheets. The unit provides quick and simple results with various test methods such as Schopper, Bentsen and Gurley. It is a fully automated instrument controlled by a single chip microcomputer with a measurement range of 0 – 400 ml/min and a pressure difference of 1KPa. The unit has an LCD screen and a micro-printer for quick and clear printing.