Proflow Hul 30 Series Ultrasonic Level Meter

"Non-contact level measurement
Proflow HUL 30 series ultrasonic level meter is a  non-contact, controlled by microprocessor, easy installation and maintenance of level measurement instrument.
Profolow Hul 30 has corrosion resistance, easy installation, high measuring accuracy, fast response, long life, good stability, large span, features to control your process. "