This is how it works: Hold the unit against a wall, press a button, and wait until the measurement appears on the digital readout panel.

Tom pointed to two lights on the readout panel.

Suddenly the young inventor tensed as he watched the readout panel.

Soon the liner's trace elements began to flash on the readout panel.

To his dismay, not a single light flashed on the readout panel!

He raised the tricorder again, watching as its indicators moved slowly across the readout panel.

Its only features were a few press-buttons, and a small readout panel; it looked for all the world like some form of simple communications device.

Getting ready to yank her into the air if necessary, when suddenly, a woman's voice came from my readout panel: "Vee-one."

On the device's small readout panel, the numbers shifted, held for a moment, then changed to letters.

Again, after Eshamani had poked in the values, stars appeared on the readout panel.