where to put thermometer in a tent

hi everyone where would be the best place to place a thermometer in agrow tent to give a proper reading should it be in the shade or in direct light my light is 12 inch away its a 400w

right above the plants in the center

You do not want it in direct light, otherwise you will get inaccurate readings. You want to measure the ambient air temp.

where should i put it then m8 in a shady bit ??

I usually keep mine on the wall near the top of the canopy, this give u the ambient temp for the area that is important