About: http://webisa.webdatacommons.org/99280491

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	Reflective Surfaces ?? Use caution when installing any light curtain where the sensing field is adjacent to a reflective surface, such as shiny metal, foil, plastic or other similar material.
http://www.w3.org/ns/prov#wasQuotedFrom	lightcurtain.com