Non-Contact Fill Level Verification

Detecting liquids inside bottles is a necessary application in the beverage industry. In order to maintain consistency in product and ensure there are no recalls, liquid levels in water bottles must be verified. A sensor that can reliably detect water through a wide variety of bottles is needed in order to accurately determine fill level.


Banner’s QS30H2O sensor is a specialized sensor developed to address challenges with sensing the presence of water and water-based liquids. The QS30H2O operates in a through beam sensing mode and the emitter uses a wavelength that is tuned to not pass through water. The high excess gain of the sensor makes it powerful enough to see through an assortment of plastic and glass containers.

Two pairs of sensors can be utilized to determine that the fill level has met minimum but is not overfilled and wasting product. Apertures can be placed on the receiver end to minimize the beam pattern and increase accuracy of the application. This ensures products that do not meet fill level criteria are not processed or shipped.

WORLD-BEAM QS30 Water Sensor

PW12-rated high power water sensor uses 1450 nm sensing beam to solve challenging liquid detection applications.

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