DescriptionDräger Detection Tubes for Ammonia (0.25/a) are easy-to-use tools for short-term gas detection. Each pack contains 10 tubes, and they have a shelf life of two years. These tubes can detect ammonia and several amines, which helps ensure safety in different environments.Using the tubes is straightforward. They give results in just 10 seconds to 15 minutes, depending on the type. You can use them for pre-entry checks, confined space entry, and monitoring air quality.