Thanks to the technical developments in recent years, many advanced procedures have emerged to ensure the patients' quick recovery in hospitals. The key thing is the need for proper nutrition, solvent & electrolyte research and treatment in hospitals. In both clinics, the service / child staff is responsible for ensuring the amount of the container of electrolytes. Unfortunately, though the observer may fail to adjust the bottle at the right time due to their hectic schedule. A IoT-based automatic warning and signalling system, using a sensor as a level sensor or weight sensor, is proposed in order to address this crisis situation.This is built on the idea that when fluid level / weight is below some limit the performance of the sensor shifts. If fluid level / weight is small, the observer will be notified at the control room via the monitor or mobile to indicate the patient's room number for rapid recovery. When such a surveillance system is installed, the risks of patient accidents will be minimized and the quality of hospital healthcare improved. We may build a ready-mate portable cover system for these bottle in the future.