Macherey-Nagel Quantofix Sulfite Test Strips provide a quick and reliable method for detecting sulfites in water-based liquids. With a simple dip-and-read procedure, results are available in less than 30 seconds and can be evaluated visually with the color scale or digitally using the QUANTOFIX Relax strip reader. Designed for convenience and accuracy, these strips are ideal for quality control in wine, beer, and food production, as well as for process monitoring and water treatment in the chemical industry.