Product overview A noncontact external pipeline sensor with corrosion resistance and a 5–12V NPN output. Designed to monitor pipelines and equipment from the outside, it avoids direct exposure to fluids, resists strong acids, and delivers stable, interference‑resistant performance with pure electronic circuitry and no moving parts. Key benefits Safe, non‑invasive monitoring: Mounts externally on pipes or non‑pipe surfaces so the sensing element does not contact the fluid, eliminating contamination risk and reducing maintenance. Corrosion resistance for harsh media: Construction resists strong acids, extending service life in chemically aggressive environments. Reliable in electrically noisy environments: 5–12V NPN design provides anti‑interference stability and sensitivity, helping maintain accurate detection under external electromagnetic interference. Long life and consistent output: Pure electronic circuit with no mechanical moving parts prevents wear‑related sensing errors and reduces downtime. Easy intelligent operation: Built‑in functions for reference adjustment and status display simplify setup and allow flexible operation across multiple sensing points. Key specifications and attributes Supply voltage: 5–12 V Output type: NPN Sensing mode: External / non‑contact mounting for pipelines and similar applications Electronics: Solid‑state (no moving parts) for stable long‑term operation Immunity: Designed to reduce effects of external electromagnetic interference Chemical resistance: Engineered to resist strong acids (corrosive media) Controls: Integrated intelligent reference adjustment and status display for on‑site tuning and diagnostics Compatibility: Works with standard controllers, PLC inputs, and NPN‑compatible control circuits Typical applications Chemical processing: External level or presence detection on piping and tanks carrying strong acids where sensor contact with fluid is undesirable. Corrosive or hazardous fluid lines: Leak/flow monitoring or item detection on external surfaces of pipelines in environments where acid resistance is required. Automated control systems: Integration with PLCs and control panels for multi‑point monitoring and signal processing in manufacturing lines exposed to EMI or corrosive chemicals. Why choose this sensor Minimizes process interruption by avoiding direct contact with media. Reduces replacement and maintenance costs through corrosion‑resistant design and no mechanical wear. Delivers dependable detection in electrically noisy or corrosive settings. Simplifies installation and tuning with intelligent adjustment and clear status indication.