Reliable Wet-Well Level Without Submerged Contact Wastewater Ultrasonic Level Transmitter is designed for wastewater wet wells, lift stations, equalization basins and sewage tanks. Grease, rags and solids foul submerged sensors, while turbulent inflow and foam can produce unstable echoes if the mounting point is poorly chosen. A non-contact ultrasonic transmitter supports continuous level, high-level alarm and pump control without exposing the transducer to the wastewater. Control Pumps While Reducing Sensor Fouling The transmitter sends an ultrasonic pulse toward the surface and converts the return time into distance and level. Non-contact measurement keeps the sensor away from wastewater, chemicals and moving equipment, while local display and signal outputs support continuous control. Gallop lists compact and split structures, 0.4 to 20 m measuring ranges, ±0.5 percent full-scale accuracy, 4-20 mA, RS485 and HART options, and IP68 sensor protection for the core GLP-7 series. Optional relay output can support pump start and stop logic. Split and compact configurations, local display and relay or signal outputs can be selected around the station layout. This page can naturally support buyer terms such as non-contact level transmitter, ultrasonic tank level sensor, 4-20 mA level measurement, pump control and remote level monitoring. Manage Foam, Turbulence and False Echoes Mount above a calm target area away from inlet splash, ladders and pumps, preserve the blind zone and use a stilling arrangement only when properly designed. Set pump start, stop and alarm points from usable wet-well volume and verify fail-safe behavior, signal loss handling and backup level protection. Dense foam, heavy vapor, vacuum, strong turbulence, internal obstructions and material buildup can weaken or misdirect the echo. A clear sound path and sufficient blanking distance are required. The company reports customers across Asia, North America and Europe and offers multiple materials, structures and outputs. Use the application data sheet to turn that flexibility into one controlled, auditable model selection.