About: http://webisa.webdatacommons.org/212254843

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	System 200 includes sensor unit or sensor assembly 202 having aperture 204 and mounting channel 210 for mounting sensor assembly 202 to safety equipment such as a safety helmet, face shield or face mask.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com