Detex Corporation is pleased to offer the proven, innovative door management products from Designed Security Incorporated, a Detex Company. Helping to enhance access control systems and provide additional perimeter security, the EAX-411SK, 12 or 24 VAC/DC door prop alarm, provides a unique solution to the common security challenge associated with doors that are propped open. Providing a custom fit for each opening the "door open" time is field adjustable from 0-60 seconds. When a door is left open longer than the set time, the EAX-411SK will sound. The alarm automatically resets when the door is closed.