<http://schema.org/description>
"Non-contact, ultrasonic gaging and positioning systems from Albion Devices Inc. use air-coupled, pulse-echo acoustic technology to measure thickness, distance, position, perpendicularity, shape and orientation."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/products/albion-devices-gaging-systems-measure-without-contact>