Honeywell SLG 700 User Manual page 6

Symbol Definition
®
The Factory Mutual Approval mark means the equipment has been
rigorously tested and certified to be reliable.
The Canadian Standards mark means the equipment has been tested
and meets applicable standards for safety and/or performance.
The Ex mark means the equipment complies with the requirements of the
European standards that are harmonized with the 2014/68/EU Directive
(ATEX Directive, named after the French "ATmosphere EXplosible").
SLG 700 SmartLine Level Transmitter User's Manual
Page vi Revision 7