While Tom was explaining his idea, an alarm buzzer sounded.

The alarm buzzer went off two and a half hours later with him still staring up at the dark ceiling.

The alarm buzzer made them rush back into their turret.

Automatic alarm buzzer is loud enough to wake the principal.

Sparrow kicked the alarm buzzer, brought the engines to life.

The alarm buzzers sounded, and colonists were pouring out of their houses.

The first thing the crewman on watch knew of the escape was when an alarm buzzer woke him.

Somewhere an alarm buzzer sounded, probably to summon somebody when we awoke, I thought.

I put an alarm buzzer in her room so she would be able to press it and alert the staff if she was afraid.

She smiled reassuringly at the woman and pressed the alarm buzzer by the side of the couch.

Alarm buzzers signaled damage to a section of the Redoubt's perimeter.

He started when warning lights suddenly flashed from the life support monitors and alarm buzzers sounded.

An alarm buzzer had been rigged so the lookout could signal in case of any suspicious activity.

A few moments later an alarm buzzer warned that the outer airlock hatch had been opened.

The growling sound was the clock, its normal alarm buzzer sounding strange, alien in the liquid.

Emergency exits were everywhere, all of them properly marked, but with alarm buzzers on them.

An alarm buzzer began its cry, repeating its grating message every three seconds.

"Must be one of Sandy's close chums," Tom thought, since the alarm buzzer had not sounded.

Chaney pressed the alarm buzzer till Capt. Brian showed up again.

Her ship's alarm buzzer had failed.

Optionally an audible alarm buzzer, typically in the range of 70-105db, may be added to alert machine operators to high priority conditions.

The alarm buzzer sounded.

Garcia pushed the alarm buzzer.

He dismissed it from his mind, firing another three-round burst into the second guard as the man reached for the alarm buzzer on the door frame.

Conceivably it was an alarm buzzer sounding somewhere above my head but it would be heard from the flight deck and I discounted it.