Application‑based Propane Detector segmentation partitions demand across four end‑use domains: Residential, Commercial, Industrial, and Agricultural. The Residential segment encompasses single‑family homes, multi‑unit apartments, and mobile homes where safety regulations and consumer awareness drive adoption of fixed or integrated detectors. With the broadest geographic penetration, this segment contributes the largest portion of market revenue, estimated at 45 % of total sales. The Commercial segment includes office buildings, retail complexes, and hospitality venues; higher occupancy densities and stricter code compliance result in a 30 % revenue share, supported by a mix of fixed and integrated solutions. Industrial applications cover refineries, petrochemical plants, and large‑scale storage facilities where continuous monitoring is critical; despite representing only 15 % of revenue, the segment commands higher average selling prices due to ruggedized designs and redundancy requirements. Agricultural use—primarily on farms, greenhouses, and livestock facilities—accounts for roughly 10 % of market size, reflecting modest penetration but growing interest in IoT‑enabled leak detection. This application taxonomy illustrates how usage context directly influences both unit volume and value contribution within the overall market.