About: http://webisa.webdatacommons.org/375320125

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	If the coupling mechanism is infrared or visible radiation, the transducer is a combination of an infrared or visible light detector and an infrared or visible light emitter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk