When a Midwest truck stop needed reliable level measurement of their DEF fluid storage tank, they turned to Flowline. In each fueling bay, drivers fast dispense DEF into their rigs. The DEF dispensers are fed by a single storage tank that’s refilled every 2-3 weeks by their chemical supplier. The operator stated that past pressure level sensors had failed due to corrosion, and the replacement ultrasonic sensor became unreliable during the hot humid months of summer due to condensation on the transducer. For this reason, Flowline suggested our proprietary reflective ultrasonic sensors that are unaffected by condensation. See how. The intrinsically safe ultrasonic sensor provides reliable level data to the PLC which alarms for resupply. Flowline is reliable level measurement.