About: http://webisa.webdatacommons.org/276696089

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The sensor uses a separate emitter and receiver to set up a unidirectional sound beam that can be broken by clear, opaque and translucent objects and materials such as glass and plastic bottles.
http://www.w3.org/ns/prov#wasQuotedFrom	designnews.com