There was only one security sensor covering the area, a motion tracker wired straight into the AS.

Often a motion tracker, such as a magnetic tracking device or inertial tracking device, is attached to capture the global position/rotation data of the glove.

The motion tracker makes the familiar and unsettling high-pitched whine when it picks up the xenomorphs-which made Pitchford yell, "They're in the room!"

Nothing on the motion trackers, but the long-range sensors are malfunctioning.

Nothing on the motion trackers.

At the start of the game, Lewis is in the base's brig and has no weapons, motion tracker, or security clearance.

The game's heads-up display includes a "motion tracker" that registers moving allies, moving or firing enemies, and vehicles, in a certain radius of the player.

Examples of trackers include motion trackers, eye trackers, and data gloves.

The HUD also has a motion tracker that detects allies, enemies, and vehicles within a certain radius of the player.

Players are also able to use welding torches to seal doors and motion trackers to detect unseen enemies.