Keeping pace with facets of nanotechnology and its applications in the field of development of smart instrumentation to cater today’s needs and future requirements of various sectors, sensor is the key portion of the measurement system, which responds directly to the physical variables that need to be measured. Therefore, one should opt for proper sensor of better characteristics, nanoparticle spinel Manganese-Zinc ferrites have been synthesized by co-precipitation method. The formation of the materials is confirmed by X-ray powder diffraction and FTIR absorption technology. The results of X-ray diffraction investigation confirm the formation of a single phase composition with the average particle size from 40 nm to 48 nm. Temperature dependent electrical properties of the compositions of Mg_xZn_1-xFe₂O₄ nano ferrites were investigated for suitability of these materials as a sensing element for designing of sensors. The sensors developed, are employing thick film technology. Measure the DC electrical resistivity of the pelletized compositions and shows the semiconducting behavior, which is attributed to the electron hopping mechanism. This electrical conductivity exhibits the influence of magnetic ordering at curie temperature. The curie temperature values depict the compositional dependence. The electrical resistivity shows a negative temperature coefficient with temperature, hence the materials could be used to design temperature sensors. The results of implementation are interpreted in this paper.