About: http://webisa.webdatacommons.org/226530757

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	With systems such as these, changes in the infrared content of the light received by the device from the area under control is monitored and an alarm signal is generated if the infrared content changes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com