The SDC Quiet Duo LR100VDK Von Duprin Motorized Latch Retraction & Dogging Kit by Security Door Controls is a top-of-the-line access control equipment designed for business and industrial facilities. This model offers quiet operation and reliable performance, making it a valuable addition to any security system. With its motorized latch retraction and dogging capabilities, it provides enhanced control and safety for commercial settings. Trust in the Security Door Controls brand to deliver quality and functionality in access control equipment.