Intended Use: Use with Metene TD-4116 blood glucose monitoring system and TD-4116 glucometer strips only; For one people use only Function: Simulate tests to standardize operating procedures; check if the glucometer and the strips are working properly with each other Use by: 3 months after first opening; Please do not use after the use by date Attention: If you are worried about the accuracy or if any problem when use this product, please kindly contact us and we will reply it as soon as possible