About: http://webisa.webdatacommons.org/71163787

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	Generally such electronic systems include one or more sensors which detect conditions such as intrusion or fire (smoke or heat) and upon detection sound an alarm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com