Vpd. Leaf temp, 10° lower then room temps?

Michigangrows2 said:
So what am i using as room temp to refer to the vpd calculator. Solo Cup said 69 tent pole above lights said 69 temp indicators show 73 -75 that entire time i was checking and looking at them at the same time
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It's up to you to figure the true canopy temp; maybe take an average.

What you did was confirm that the LST is -3 degrees.

Ideally, your temps should be ~ 10° warmer, growth is dramatically faster at 80° vs. 70°
 
Billy the Mountain said:
It's up to you to figure the true canopy temp; maybe take an average.

What you did was confirm that the LST is -3 degrees.

Ideally, your temps should be ~ 10° warmer, growth is dramatically faster at 80° vs. 70°
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Ive had the tent at 83 80 78 i get weird issues im sure vpd was the culprit. Now that i got some better basis to go on i can play alittle more.
However all 3 temp sensors showed 74° yet the cup showed 69 the upper tent cross pole showed 69. I mean is that what i need to do is check objects in the room? Do u think my temp sensor inside the solo cup is ok? Or is that being in center of all the lights my issue with them saying 74 and the surface saying 69? Or is there more i need to learn on air temps vs idfk lmfaoooooo bare with me lolol
 
maybe a change of batteries would be in order? I can't see how the very same things fluctuate between 5°.... it's more like 0.1° at best...
 
Michigangrows2 said:
Would it be the sensors Basicly under the lights ?
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I have no clue but I remember I had once a light distorting my readings, but it was HID. Just rule out any faults.... btw how do u arrive at that assessment its -3 on average with that
Michigangrows2 said:
So after playing with it for a bit the room is running right at 72 to 75 and the temperature gun chose the Solo Cup for the first minute being 69 degrees and my Leafs being 66 to 67 everywhere but the more I took the temperature in the longer I kept playing with it the lower all the numbers kept being all the way down to where it was telling me the cup was only 64 degrees and my Leafs were 61 however during the first minute that everything was holding nice and steady no matter what Leaf I touched even the lower leaves on the plant said 65 at the lowest and the highest was 67 66 so along with the cup showing 69 the tentpole also showed 69 then back to the Leafs and they all still showed 67-66 and then about after a whole minute they all started every time I looked it was a different number
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looks like its not working properly...
 
Skin temps and surface temps, you can see the display for each setting.Screenshot_20220317-131055.pngScreenshot_20220317-131041.png
I'm not looking to argue its just I've never known of anything other than 37c being typical body temperature.

I've two ir costing around £100 each they both read 37c, the two cheaper ones i have are both 4-5c out, Ime they're a waste of money you're better with mercury/alcohol or digital over a cheap one.
 
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