Car alarm loop. Fast bright alarm.
Low pitched drone. Alarm.
A repeating electronic siren or alarm going off in public building.
A wake up alarm or digital beeps repeatedly going off.
A school bell or fire alarm ringing from a close perspective.
Classic alarm clock ring, thin sound and off
A factory or industrial warning alert or alarm.
A mobile phone alarm or phone call ring with a bell.
A alarm beep of digital clock or a hospital machine.