Wireless sensor systems (WSNs) are effective for locating and following peoples and questions in different mechanical situations. Since energy utilization is basic to drawing out the life expectancy of WSNs, we propose a vitality productive Localization and Tracking (eLOT) system, utilizing low cost and portable equipment to enable exceptionally exact following of targets. Different unique mark based methodologies for restriction and following are actualized in eLOT. With a specific end goal to accomplish high energy productivity, a system level plan organizing impact and obstruction is proposed. Then again, in view of the area data, cell phones in eLOT can rapidly connect with the particular divert in a given region, while saving energy by keeping away from the unnecessary transmission. At long last, a stage in view of TI CC2530 and the Linux working system is worked to exhibit the adequacy of our proposed plot as far as confinement precision and energy effectiveness.