HSS Surface Mount Contacts UL 634 Level 2 HSS-L2S Single Alarm HSS-L2D Dual Alarm Overview Understanding UL Levels 1 & 2 Downloads (PDF) Authorized Distributors and Resellers Warranty [jwl-utmce-widget id=16866] HSS SERIES PRODUCTSSurface Mount Contacts HSS-L2S Single Alarm HSS-L2D Dual Alarm Surface Mount Contacts with Conduit Fitting Single Alarm Contacts HSS-L2S-800 Single Alarm HSS-L2D-800 Dual Alarm HSS Recessed / Concealed Contacts HSS-L2C HSS-L2C-A Installation Accessories HSS Adjustable Magnet Bracket (Aluminum) HSS Roll-Up Door Bracket Kit HSS Removal Tamper Magnet HSS Removal Tamper Cap HSS Plastic Shims HSS-L2 Series Installer Components HSS-L2-800 Series Installer Components HSS-L2C Pry Tamper Test Magnet HSS-L2C Magnet Spacers HSS-L2C-A Magnet Spacers