About: http://webisa.webdatacommons.org/429156038

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	A DPDT relay is used to provide two NO SPST contacts that can be used to activate sounds or other accessories.
http://www.w3.org/ns/prov#wasQuotedFrom	trainelectronics.com