GENERAL DESCRIPTION SpiroTube WaterProof Edition is a pulmonary function diagnostics and monitoring device. SpiroTube WaterProof Edition is suitable for screening COPD and asthma. SpiroTube WaterProof Edition is completely disinfectable: The flow sensor is completely waterproof, it can be immersed in cold disinfectible liquid or washed. Specifications: - Flow measurement principle: way - Flow tube diameter: 30 mm (OD) - Dead space: 16,8 mL - Flow resolution: 8 mL/s - Flow precision: 3 % - Flow range: +- 18 L/s - Connection to PC: USB - Device dimensions: 27 X 60 X 150 mm - Power supply: USB 5V