Proximity flare

A Proximity flare was a type of early warning system.
==Characteristics==
Used by soldiers and scouts as early warning systems for camp perimeters, a proximity flare was a flare launcher consisting of a small tube with a spike on the bottom, allowing it to be securely placed in the ground. Sensors inside the tube could detect nearby shifts in air-pressure; when an object of sufficient size passed within ten meters of the launcher, it would fire the flare into the air and illuminate the area.
==Sources==
*Galaxy at War
==Notes and references==
Category:Illumination devices