A Motion Sensor is an equipment found in Black Ops. It is the second most expensive equipment costing 3000 COD Points.
The use of the Motion Sensor is that it reveals enemy locations , much similar to a Spy Plane, except from it is only in a circular area. Allies cannot see where you have placed your Motion Sensor.
Hacker Pro acts as a counter and can also be hacked, turning the Motion Sensor to the enemy team.
The Motion Sensor is seen as more useful in objective based games, as it is easier to see enemies as a whole and has an unlimited use, where as a Claymore will only have one use. It is also helpful when defending a building.
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