A wireless sensor network (WSN) is a group of sensor nodes that take data with specific measuring parameters and then send the data wirelessly to a central node or a server for data processing. One of the most critical things in WSN is the network's lifespan. The lifespan of the WSN depends on the battery capacity of the sensor nodes. The sensor nodes must work as efficiently as possible so the lifespan of the WSN can be longer. The longer the WSN lifespan, the less frequent battery changes for the dead nodes. The data transmission process consumes more energy than the data process; therefore, WSN needs to use a routing method to save energy. The concept of node clustering is one of many ways to extend the lifespan of a WSN. One of the routing protocols that use the clustering concept is LEACH. This paper proposes a modified routing model based on LEACH with distributing the cluster head to prevent adjacent cluster head from occurring. From the simulation results, the lifespan of WSN using the proposed model increased more than 50% with a stable energy dissipation compared to the LEACH protocol. The increased lifespan of the WSN also increases the amount of data received, thereby increasing the throughput received. The data received increased more than 50% using the proposed model compared to LEACH.