Can you explain how scout cams work; is it always visible to the enemy team?

Scout Cams grant vision and true vision (the ability to see stealth) in an area. It will be in stealth mode and not visible once you put it on the map, provided another Scout Cam is not near by. However, if the enemy team places, or already has, another Scout Cam in the same area, they will both reveal each other and be able to be destroyed.