MSS 'Standard' Overhead Door Contacts UL SECURITY LISTED MSS-105&106S 4.0″ [102mm] Overhead Door Contact Overview Downloads (PDF) Authorized Distributors and Resellers Warranty [jwl-utmce-widget id=16860] MSS ‘STANDARD’ PRODUCTSRecessed / Concealed Contacts MSS–09CL MSS–09CT MSS–19C MSS–19CL MSS–19CT MSS–25C MSS–25CL Surface Mount Contacts MSS–53SL MSS–63S MSS–K22 MSS–K22S MSS–89SL Overhead Door Contacts MSS–105S NEW! Wireless Sensor MSS-RFS Wireless Sensor Accessories