Temperature

First post! Hope it's not a stupid one.

When you are monitoring temps how, and where, do you place the thermometer? I'm scrogging so I was thinking the canopy would be the right place. But do I put the old-school thermometer face up toward the light right in the middle? I guess maybe the best way to word my question is am I trying to determine air temperature or the temp the leaf experiences, including the light absorption? Make sense?

Thanks much! This place is so awesome.
:joint:
 

lulutheblack

Active Member
I'm no expert but I would assume that you want to know the temp of the immediate area closest to the plants themselves since the whole idea is to keep the plants themselves in a certain temperature range. Like if the plants are at the right temp but the top of the room or closet or whatever isn't, then who cares right?
 
That's what I think too, but with absorption temps go crazy quickly. I don't know how comparable absorption of light is between plastic and plants. I have an Atomic Clock with a temp sensor (digital) and when it's out in the full sun it reads 125° when it's 85° outside. I feel like this is the same thing.
 

lulutheblack

Active Member
Use it outside in the shade and see what it tells you the temp outside is. Maybe direct sunlight is throwing it off
 

thalboy

Active Member
I have an indoor/outdoor thermometer that I use. I place the actual thermometer in the shade so that it can read ambient temps, and I place the probe at canopy level but under the highest set of leaves.
 
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