Then, suddenly, the proximity alarm went off, almost sending me straight up through the hull.

Before he could think of a response, the ship's proximity alarm went off.

Who decided to take on an obvious corporate custom job whose proximity alarm just happened to fail?

Since the proximity alarm had failed on him, he'd taken to parking out in the open where the security cameras could see him.

At that moment, the proximity alarm went off again.

"We've clearly set off every proximity alarm on the base by now."

"No, but they DO have a satellite with a proximity alarm!"

All was quiet until the proximity alarm went off!

That was when the proximity alarm went off again, and Gabriel's head snapped up.

They were barely out of his mouth when a proximity alarm went off on the helm console.