outdoors they have infra-red which can detect plants that put out high heat like mary. But I think this is only a problem if you live in a place where you don't have tropical plants therefore the mary will stick out like a sore thumb under infra-red. As for as spotting, that depends on how slow and how high or low they fly and if they are looking for that in particular. I've been on many many choppers and it's hard to spot anything when flying high and fast.
sticky Reviewed by sticky on . so what tools do the helicopters So what tools do the helicopters use when looking for plants? Do the find them by site or do they have something that can pin point a group of them? What is the fed law or does it go by state where they can scan your house looking for hot rooms? What other ways do they have? Rating: 5