Sensors registered very few life signs, and several were in this room.

The fence could be cut, and the sensors would not register it.

Yet the sensors still do not register any life forms.

The sensors no longer register any indication of life on the planet's surface.

They develop sensors (eyes) to register the presence or absence of light.

During the 2004 mission, sensors registered a similar signature at about the same point in the flight.

The sensors do not register them because of the radiation.

"Sensors register other life signs in close proximity to the landing party."

The sensor would probably register when we had approached it to within 30-40 paces.

"The sensors register the opening of the main portal in the craft."