About: http://webisa.webdatacommons.org/374077320

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	Tachometers are installed in cars, boats, and other motor vehicles to monitor the engine???s RPM. Handheld tachometers verify the accuracy of these installed tachometers.
http://www.w3.org/ns/prov#wasQuotedFrom	amazonsupply.com