In the PIR Motion Detector market, application segmentation accounts for the primary distribution of revenue across end‑use environments. Residential installations, encompassing home security systems and automated lighting, represent the largest share at approximately 35 % of total sales, driven by widespread consumer adoption of smart‑home platforms. Commercial applications—office buildings, retail premises, and hospitality venues—contribute roughly 30 %, reflecting the demand for energy‑efficient occupancy sensing and integrated alarm solutions. Industrial settings, such as manufacturing plants and warehouses, account for 20 % as firms prioritize safety monitoring and process control. Smart‑lighting projects, often linked to municipal infrastructure and campus campuses, hold a 10 % slice, where motion‑triggered illumination reduces electricity consumption. Finally, automotive integration, primarily for interior occupancy detection, makes up the remaining 5 %. Collectively, these application categories define the overall market size and are the basis for the accompanying pie‑chart in the PIR Motion Detector segmentation analysis.