SimplexGrinnell has been in business on Halsted Rd. for the past nine years. It specializes in providing fire alarms, fire sprinklers, and fire suppression. It also provides integrated security, sound, and healthcare communications systems and services. SimplexGrinnell is the leader in fire and life safety, with a company reputation that spans more than 200 years. Visit its Web site for more information about its beneficial services and products.