I've wondered this but my grow is outdoor so no heat.

Can they pick up the leaf signature via IR? If so, well I'm fucked - that would explain why they hover over my house a lot LOL
Delta9 UK Reviewed by Delta9 UK on . helocopter grow heat detection? hello there , from uk and just wondering if anyone knows about these choppers flying above? people get busted by because of the heat given off from their loft grow? heard its only with hps or mh but wana be sure- im thinking of using a 200watt gro lux and dont wana get busted! cheers guys Rating: 5