Their instruments soon told them that the rock and soil was red hot.

Then, remembering the power they must be up against, he added, "So far as our instruments can tell us."

The instruments at my disposal can only tell me so much.

When you move, the instruments will tell us, and we'll have a little chat.

So she sat back for another hour, watching screens and instruments tell her not much of anything.

His instruments told him they should sight land at any time.

"And your instruments couldn't tell you how the other twelve died?"

How do I know what these instruments tell me is right?

But there was nothing to observe beyond what the instruments had told them already.

In moments, only instruments could tell that it had ever been.