The Synergistics MSLR1 Bank Vest Control System is an ATM vestibule access controller designed to manage entry for a single door through a single reader input. It grants access to magnetically encoded cards featuring a Start Sentinel (SS, BH) in the first position. The controller includes an adjustable potentiometer to customize the door unlock duration after a valid card swipe. This self-contained unit comes with a power supply, provides 12 VDC output from a 115 VAC input, and includes two 35-foot cables for connecting to a card reader and a door strike. While it does not include the card reader itself, it is designed for commercial applications, meets banking industry security requirements, and operates without the need for additional computers or software. The unit measures 7 inches in height, 7 inches in width, and 2-1/2 inches in depth, constructed from steel, and is ETL Listed Mark-3044814-UL STP 294 compliant.