| These liquid level sensors are based on ultrasonic time-of-flight measurement. The sensor emits an ultrasonic wave which is reflected at a liquid surface and echoed back to the receiving sensor. On the basis of the propagation time of the signal the height of the liquid column can be calculated. • Non-invasive pulse echo ultrasonic technology • Continuous level sensing of almost any fluid • For use with chambers or fluid reservoirs of various sizes and geometries • No media compatibility or sterility issues because of non-contacting method • Output signal not affected by fluid colour • Pulse-type technology offers excellent electrical noise immunity • Customisation to any form, fit or function allows huge design flexibility |