The perme® tsy-w3 is an advanced water vapor permeability tester designed to measure the water vapor transmission rate of various materials used in the sanitary and medical industries. It features a micro-computer controlled system with high precision temperature and humidity control, capable of supporting non-standard test conditions, extensive data management, and multiple customization options. The device is compliant with several international standards and is applicable to a wide range of materials, including plastics, composites, and medical products.