I have been trying to find the best place to put my thermometer in my growbox. It seems there a small temperature differences in the different places I have tried. Which area is the best to place a thermometer in a grow box?
My thermometer has a remote sensor, basically the part that feels the temperature and the part that displays the reading are separate, connected by a long skinny cord. I took a small piece of a 2x4 and drilled a hole partway in it then inserted a dowel into the hole (so that the 2x4 piece is a base and the dowel sticks up like a flagpole). I put this in between my pots and then use a binder clip, a paper clip, and a piece of a drinking straw to attach the remote sensor to the dowel, I can easily adjust it up and down as the plants grow.