1,200 pixels, file size: 419 KB, MIME type: image/jpeg) Description English: A new-style Simplex TrueAlert speaker/strobe fire alarm, installed at the Brockton Public Library in Brockton . This is part of a modern Simplex 4010 system. Date 2 October 2008 ( 2008-10-02 ) (first version); 10 August 2007 ( 2007-08-10 )