Test kits are a type of tool used for rapid detection and diagnosis, and are widely used in the medical, scientific research, and industrial fields. They can detect various biomarkers, chemicals, or mechanical properties, helping users obtain accurate results in a short time. Test kits in the medical field are often used for disease screening, such as COVID-19, influenza, and blood sugar monitoring, while industrial test kits are used for product quality control and safety testing. Test kits are usually convenient, accurate, and fast, making them ideal for laboratory and on-site testing, helping various industries to achieve efficient testing and quality assurance.