Location has become an essential part of the next-generation Internet of Things systems. This paper proposes a multi-sensor-based 3D indoor localization approach. Compared with the existing 3D localization methods. this paper presents a wireless received signal strength (RSS)-profile-based floor-detection approach to enhance RSS-based floor detection. https://www.hindigyanvishv.com/special-deal-Fluffy-White-Feather-Tinsel-Angel-Halo-quick-deal/