The flipped switch then triggers the alarm to go off ... This essentially turned Holmes’ design into the first modern fire alarm. Burglar alarms get triggered in different ways. Motion sensors —such ...

Automatic fire alarms are cause for multiple alerts every day to Butler County Emergency Services, and they are usually single alarms that don’t warrant a full staff fire department response. But on ...

The fire got so bad that firefighters had to be pulled out of the stores and switch to an exterior operation, Esposito said. During the fire, at least one ceiling collapsed, he said.