Where do you position your temperature guages?

I'm slightly confused about this.

My first thought would be that the ideal place would be at the same height as the canopy - but that may give a false reading due to the radiant heat of the light. Your room might be 74 but directly under the lights is 90.

When people refer to optimal temps, where abouts do they take the reading from?

i hang mine under the lights level with the tops and one in the pots

one at the top of the canopy and one at the base for ambient

sixstring2112 said:

i hang mine under the lights level with the tops and one in the pots

Click to expand...

Under the lights, as in, at the same height as the canpoy but off to the side to avoid direct light contact - or directly under the light? Won't that get really hot?

beachgreens said:

one at the top of the canopy and one at the base for ambient

Click to expand...

Do you see a major difference between the bottom one and the one with the light directly hitting it?

I put mine on the wall at the same height as the plants, with an index card taped over it for shade from radiant heat

Found this great post which answers my questions;

https://www.rollitup.org/indoor-growing/137668-how-do-i-measure-temperature.html