For the park, see Washington Square (Philadelphia). Washington Square West is a neighborhood in downtown, or Center City, Philadelphia, Pennsylvania.
Electric Door Strike (image from bigasterisk.com) A better solution for door security hardware during a power outage is to use electric strikes. An electric strike is a mechanically operated strike that releases a door when the mechanical part is activated.
Electric Strikes; Type: Electric Door Strike; Length: 1.630 (Inch); Width: 1 (Inch); Finish/Coating: Satin Stainless Steel; Voltage: 24 VDC; Material: Zinc Alloy Type Electric ... View Product Securitron - UNL-24 - Electric