The device is capable of reading two types of data, but specific test strips are required for each. For example, use a Glucose strip for glucose testing and a Ketone strip for ketone testing. The device automatically recognizes the inserted strip type and switches to the corresponding mode; no manual setup is needed.

GKI stands for "Glucose Ketone Index," an essential international metric for evaluating the effectiveness of a ketogenic diet. Looking at glucose or ketones alone sometimes fails to reflect overall metabolic status. A lower GKI value (typically below 9) indicates that the body is more efficiently using ketones for energy and is in a better fat-burning state.

The monitoring system utilizes micro-sampling technology. Both Glucose and Ketone tests require only a tiny amount of blood (0.7~1.0 μL, about the size of a pinhead). When used with the dedicated lancing device, it significantly reduces pain during sampling, and testing is completed within seconds.