About: http://webisa.webdatacommons.org/452821072

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 current sensing devices may comprise relays such as electromechanical relays or static relays and may be combined with digital or analogue electronic processing means.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk