Generally speaking, blood glucose meters are sold in relatively large pharmacies that sell medical devices. It is recommended not to go to the diabetes franchise store on the street, where the blood glucose meter is generally not very good. Generally speaking, imported blood glucose meters are more expensive, while domestic ones are much cheaper. It depends on your financial ability. It should be noted that the blood glucose meter test paper is a special test paper for each model and is not universal. It is best to bring a blood glucose meter to buy test paper to avoid buying it wrong. Also, the blood glucose meter test paper has a shelf life, and it will expire in a few months after opening. Don't buy many test papers at a time to prevent it from expiring.