Application‑based segmentation isolates the market into Oil & Gas, Chemical Processing, Pharmaceutical, and Water Treatment uses, reflecting end‑user demand patterns. Oil & Gas accounts for the largest share, driven by the need for real‑time bubble detection to prevent hydrate formation and ensure pipeline integrity; its high capital expenditure justifies premium detector pricing. Chemical Processing follows, where bubble monitoring safeguards reaction yields and prevents equipment fouling, prompting steady adoption of cost‑efficient electrical detectors. The Pharmaceutical sector, though smaller in volume, commands higher margins due to stringent sterility standards, favoring optical detectors with superior precision. Water Treatment represents an emerging niche, leveraging acoustic sensors to monitor aeration and gas‑liquid interactions in municipal and industrial treatment facilities. The relative weight of each application is illustrated in the accompanying pie‑chart, underscoring the dominant role of Oil & Gas while highlighting growth potential in pharmaceutical and water‑treatment domains.