During recent years due to the technological advancements, many sophisticated techniques have been evolved for assuring fast recovery of the patients in hospitals. for good patient care in hospitals, assessment and management of patient’s fluid and electrolyte need is the most fundamental thing required. in all hospitals, the nurse is responsible for monitoring the intra-venous fluid level continuously. but unfortunately, during most of the time, the observer may forget to change the saline bottle at the correct time due to their busy schedule. this may lead to several problems to the patients such as the backflow of blood, blood loss etc. to overcome this critical situation, a low-cost wi-fi based automatic controlling device is proposed. where the infra-red sensor is used as a drop counter sensor. if any variations occur in the flow rate then the device capable of self-calibration and automatically maintain the flow rate. when the self-calibration cannot be done by the machine itself, a warning signal will pass to the control room and then the nursing staff will immediately attend the patient. machine access is limited by introducing rfid security system.