Noncontact Pipeline Level Sensor — key benefits and features Why you need this sensor Measures liquid level from the outside of nonmetallic pipes, so no direct contact with the liquid is required. This eliminates contamination risk, avoids seals and fittings that can leak, and reduces maintenance. Designed to resist erosion from aggressive media (including strong acids) and to ignore surface scale or debris. That makes readings more reliable in harsh or dirty process lines. Pure electronic design with no moving parts delivers longlasting, stable performance for continuous industrial monitoring. Main features and specifications Function: Noncontact monitoring of liquid level through the outer wall of nonmetallic pipelines. Compatibility: Operates from 5 to 12 V DC and uses an NPN output type for stable, standard signal interfacing with common controllers and PLCs. Sensing capability: Accurate level detection with measurement error less than ±1.5 mm. Pipe requirements: Effective on nonmetallic pipeline walls up to 20 mm thickness. Temperature handling: Capable of detecting boiling water levels for applications involving hot fluids. Durability and reliability: Electroniconly construction eliminates mechanical wear; sensitivity and strong antiinterference performance shield against electromagnetic noise and powerfrequency fluctuations. Installation and maintenance: External mounting avoids contact with process fluids and reduces fouling, scaling, and corrosionrelated downtime. How it solves common problems Prevents contamination and leakage by monitoring from outside the pipe without penetration or wetted sensors. Reduces false readings caused by scale, deposits, or floating debris because the sensing method does not rely on direct contact with the media. Maintains consistent measurements in electrically noisy environments thanks to strong antiinterference and stable NPN output signaling. Lowers maintenance costs and downtime because there are no moving parts to wear out. Typical applications Chemical processing lines with corrosive liquids routed in nonmetallic (e.g., PVC, PE, FRP) pipes where external sensing avoids direct exposure to aggressive media. Boiler feed or hotwater circuits where detection of boiling or nearboiling levels is required without inserting probes into temperature fluid. Wastewater or industrial drain lines where scaling, sediments, or floating debris would impair the performance of contact sensors. What to expect in use Reliable, repeatable level data for integration into control systems using a standard 5–12 V supply and NPN output. Long service life and low maintenance because the sensor mounts externally and contains no mechanical components. Precise monitoring suitable for industrial process control, alarms, and automated levelmanagement tasks.