Motion sensor

Motion Sensor is a Wattz Electronics C-U model motion detector. Detects the movement of biological material over a distance of meters using a tuned radar device.

Carrying a motion sensor - doesn't need to be in an active item slot - gives a +20 bonus to the Outdoorsman skill when traveling on the world map.

In Fallout it may be sold by Killian Darkwater in Junktown, On Fallout 2 one can be recieved as a reward for Vault City quest Enter NCR and return to Stark