Stay Sanitized, Stay Safe! 🛡️ Get results in just 10 seconds for peace of mind. Water-resistant case keeps test strips safe and sound. Convenient case with serrated edge for effortless use. Easily assess sanitizer concentration for food safety. A must-have tool for food service industry compliance. Quick results 15 ft roll 0-500 ppm range The Micro Essential Labs Hydrion QT-40 Quaternary Sanitizer Test Tape is a 15-foot roll designed to measure the concentration of quaternary sanitizers in the food service industry. With a range of 0-500 ppm, it provides quick results in just 10 seconds, ensuring compliance and safety. Packaged in a durable case, it offers protection from moisture and includes easy-to-follow instructions.