Usable within 3 months after opening and before the expiration date. The Y350 test strips from Yuwell are designed for use with various blood glucose meters of the brand and ensure accurate blood glucose measurement. They contain the enzyme FAD-GDH and are CE certified, which indicates high quality and safety. Each package contains 50 test strips that require only a small blood volume of 0.8 µl to deliver precise results. The test strips are code-free, making them particularly user-friendly. As a medical product, they meet strict quality requirements. It is recommended to use the test strips within 3 months after opening and to pay attention to the expiration date to ensure measurement accuracy.