This paper emphasizes Intravenous Fluid Bottle monitoring in hospitals using an innovative non-invasive optical approach. For good patient care in hospitals, the management of fluid and electrolyte bottles is the most fundamental thing required. In all hospitals, an assistant/nurse is responsible for monitoring the bottle’s electrolyte level. But unfortunately, most of the time the observer may forget to change the bottle at the correct time due to a busy schedule which can lead to fatal conditions like air embolism due to air bubbles in IV pipe when the bottle gets empty. To overcome this critical situation, an intravenous optical sensor system is proposed to measure the liquid level from outside the bottle. The device is designed such that it can be easily replaced from one bottle to another. This device can avoid any fatal condition and ease the workload of nurses.