Suppling a solution for door access control, Dortronics Systems Inc.'s solution combines its ETR-Timer, 3300 Series Electric Strikes and EZ-Access Solution. The "fail safe" ETR-Timers are powered from a 12 to 24 volt DC supply requiring only 0.05 amps. They can be triggered from either a normally open or a normally closed momentary dry contact or by switching the trigger input to the power source ground. The 3300 Series Electric Strikes are built to hold tight with a 2,000 pound pull test rating and a stainless steel jaw and strike plate. For added functionality, an optional latch bolt monitoring switch provides status and facilitates use in access control systems. The Dortronics EZ-Access Solution controls one or two doors with one reader each or one door with two readers for in/out control. Secured EZ-Prox cards, key fobs or any of the Dortronics 26 bit Wiegand keypads can be used to gain access. With a memory capacity of 2,000 active user codes for secure off-line operation, EZ-Access users can easily be programmed in or out of the system using a programming card or master code entered by the keypad.