Had a scare today when a police helicopter was hovering nearby, approx 1km away.Then it moved about another 1km away then moved again. Approx 5 mins in each position. My grow room is approx 50metres from any house and is a total of 8sq ft in size. Really well insulated especially the roof area. Used my two part thermometer to measure the outside temperature and the roof area above the room. Otside temp is 4.9c and the temp of the roof is 7.9c. These are all outside temps. My question is can a camera that far away pick up this difference in temp? Have shut down for the night until i can get some answers. Dont really want to rip them out as this is my first grow and they are growing really well.Insulation is 25mm thick, foil both sides plus insulated foil inside the room.Basically the whole roof area of approx 150sq ft measures a temp of approx 4.9c. My car parked next to it registers the same temp on the roof of the car. The area (6 - 8sqft)on the roof of the grow area measures 7.9c. A difference of approx 3c.Can they pick up this low temperature from 1km away?
Heat camera accuracy.
- Thread starter adeyren
- Start date
Hugo Phurst
Well-Known Member
If they're using high end gear , yes. I'm sure though that they would have come much closer for a real look if they suspected anything. What they are looking for is a big temperature difference, a grow house really stands out from it's neighbours. @ 8sq ft, I'm sure yours is too small to notice.
peace
peace
Rancho Cucamonga
Active Member
8 square foot grow room? Well that is most likely between 150-600 watts so no, they can't see a thing nor would they care if they did.