 This paper proposes a novel double negative square resonator shaped metamaterial sensor for microwave sensing applications. The sensor has a highly sensitive Q-factor and good absorption characteristics which are approximately equal to one. Computer simulations were used to optimize the design and size of the structure. Experimental and theoretical results were compared for five different materials and three different thicknesses. The sensor showed excellent agreement with the simulations, demonstrating its potential use in microwave sensing applications. This article was authored by Muhammad Amir Khalil, Wang Hinyong, Muhammad Tariq al-Islam and others.