In general Flood is considered as an inescapable natural event. Also, flood creates a huge economic damage and cause a significant loss in human life. Using different sensors, researchers made a flood detecting device with the help of Nodemcu. Proposed model is also useful for us in anticipating the upcoming calamities and to take essential activities by emergency and recover experts to spare the life of thousands of individuals before this basic condition happens. The Flood Detector System using Nodemcu is created to be one of the quickest strategies to monitor flood and Internet of Things (IoT) is one of the most important technical trends, which is utilized to monitor flood and human made resource to help in predicting and detecting flood, that can position an threat to human life.