Industrial Alarms Explained: How to Make the Most Out of Sirens
Few safety tools carry as much weight on a busy site as a good siren, which is essentially a loud, attention-grabbing device that turns an electrical signal into a sound strong enough to cut through machinery, traffic and general noise. Inside most units a driver converts the signal from a control panel into sound waves, while a built-in tone generator sets the pattern, whether that's a steady blast, a rising wail or a pulsing beep and the shape of the horn helps push that sound out across a wide area.