The PBA Micro Switch Bars series is designed to release electromagnetic locks for uninhibited egress. The 1600/1860 features a LED indicator which allows people to locate the bar in the dark quickly and easily. The PBA-860DE is specially designed for doors openings that require a delayed egress where you may already have a standard magnetic lock installed. It can be applied in commercial centers to restrict the egress of commercial center patrons for security concerns or reduce shoplifting and employee theft.