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Wireless Sensor Network applications deploy sensor nodes in large numbers in such manner to provide better results. All the sensor nodes are efficient sensing devices operating by the limited capacity of batteries. Most of the WSN applications belong to surveillance monitoring, like forest monitoring and environmental monitoring. Sensor nodes are organized in an Adhoc manner, and each node communicates individually with any other nodes for a long period without knowing its battery capacity. Due to the energy consumption, the sensor nodes suddenly become inactive or dead during the process. Thus, computing and electronics industries are joined together for reducing the overall energy spent by the sensors present in sensor network, i.e., to prolong their lifetime, they are focusing on configuring or designing MAC protocol to increase the energy efficiency. In earlier research different MAC protocols are implemented, but the efficiency varies based on the application and environment. Thus, it is important in designing a common MAC system to support a greater number of surveillance applications and also assists in improving the energy efficiency of the sensor in the network. To do that, this paper aimed to design and implement a novel Extended S-MAC routing protocol for enlightening energy efficiency. The Extended S-MAC is simulated in the Network Simulator tool, and the results are verified. The performance of the proposed Extended S-MAC is evaluated by comparing its results with the other state-of-the-art MAC protocols. Comparing with the existing MAC, the proposed MAC obtained 17% more energy and proved it is better.