DeltrexUSA – offers the most complete, diversified and comprehensive line of user friendly electric door control systems, exitrelease,callbuttons,electromagneticlocks,powersupplies, monitoringdeviceassembledhardwarewithcompletesimplified application solutions. All products are designed, developed and most are made in the USA. All DeltrexUSA systems are code conforming and ADA compliant as applicable. They are consistently reliable, durable and long lasting. Milling and engraving is done at our factory, and optionally, all plate types can be custom engravedwithdealer’sname.Theoriginalfounderof Deltrex is Irving Saphirstein, recognized as the inventor of the electromagnetic lock and the founder of Locknetics in1969.Irvin’svastexperienceisofbenefittoDeltrexUSA and our community of users.