The SentiLiter is a revolutionary new device designed for use in the typical hospital environment. Our SentiLiter takes precise measurements of fluid change in intervals and relays that data to a mobile app which compiles the readings and displays them for the medical staff. Each SentiLiter can be paired with a patient using either an IV or catheter bag and will act as the user’s eyes while they are not present in that patient’s room. The device will send alerts to the app and alert the medical staff when the fluid has increased or decreased to a threshold and can be programmed to give reminders at any time the user desires. It will also perform all fluid-flow calculations for the user automatically and display the flowrate and chronological graphical data directly in the app. With this device medical staff will have less of their time consumed by periodic check-ins and be able to prioritize those patients who need extra attention.