– In computing, a network is a collection of two or more interconnected nodes or devices. Physical or wireless connections may be used to connect the devices or nodes in question. The important thing is that there are at least two distinct components that are linked together. A sensor network is a collection of sensors, each of which collects data from a distinct place and transmits it to a hub for archiving, viewing, and analysis. A network of tiny embedded devices known as sensors that interact wirelessly using an ad hoc configuration is known as a wireless sensor network (WSN). WSN classified as Static and Mobile WSN, Deterministic and Nondeterministic WSN, Single Base Station and Multi Base Station WSN, Static Base Station and Mobile Base Station WSN, Single-hop and Multi-hop WSN. WSN Application area includes Area monitoring, Health care monitoring, Habitat monitoring, Environmental/Earth sensing, Air quality monitoring, Forest fire detection, Landslide detection, Water quality monitoring, Natural disaster prevention, Industrial monitoring, Threat detection, Incident monitoring and Supply chain related management. WSNs measure environmental factors such as wind, humidity, temperature, sound, air, and other pollution levels. WSNs are made up of independent, spatially dispersed sensors that keep track of the physical and environmental variables. The capacity to follow systems or devices in real-time and remotely monitor and control them is made possible by wireless sensor networks. The central office must monitor and record the position and status of the equipment on the production floors in certain large companies. A detailed review of the wireless sensor network and its related future trends has also been addressed in this document.