About: http://webisa.webdatacommons.org/248132009

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	At a basic level, the most important thing is you want a meter that has a narrow spot (1 degree is great!) that lets you look through the meter at the surfaces you are interested in.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com