UL has announced a new edition of UL 609. UL 609 applies to “local burglar alarm units and systems.” The updated edition incorporates the revision to minimum spacing requirements. It can be purchased on the UL website.
“These requirements cover construction, performance, and maintenance of local burglar-alarm units and systems for use in mercantile premises, mercantile safes and vaults, and bank safes and vaults.”
*Description from the UL website.