Non-invasive blood glucose sensors are available. It is a sensor that is attached to the patient's body and paired with their smartphone via a special application. Blood sugar levels are monitored around the clock, and it gives an alert when there is a rise or fall. It is also possible to monitor blood sugar remotely. Selling due to not knowing how to use it. Please search for instructions on how to use it or ask a pharmacist. Its price in pharmacies is 190 or more. The sensors have not been opened.