This paper is aimed at investigating and introducing the main results regarding the concept of Regional Boundary Gradient Strategic Sensors (RBGS-sensors) the in Diffusion Distributed Parameter Systems (DDP-Systems) . Hence, such a method is characterized by Parabolic Differential Equations (PDEs) in which the behavior of the dynamic is created by a Semigroup (𝑆Δ(𝓉))𝓉≥0of Strongly Continuous type (SCSG) in a Hilbert Space (HS) . Additionally , the grantee conditions which ensure the description for such sensors are given respectively to together with the Regional Boundary Gradient Observability (RBG-Observability) can be studied and achieved . Finally , the results gotten are applied to different situations with altered sensors positions are undertaken and examined.