Check the listing for details. (SALE) Linear eMerge 4-Door Essential Plus Access Control System. Condition: New – Open box. Listed at 522.97 USD. Best deal on eBay! This item is new/never used. The item doesn’t come in original box. Some light handling marks from transport are on exterior only. Interior is perfect with all manuals and hardware. If you’re looking for a great price, this is it. Ships lightning fast! Ask if any questions. Thanks! The Linear eMerge 4-Door Essential Plus Access Control System, model 620-100153, is a reliable and efficient access control solution for businesses and industrial facilities. With four doors, this system ensures secure entry and exit while providing convenience and control over access. Linear is a trusted brand known for its quality products, making this access control system a valuable investment for your business's security.