so how do I measure the ambient temp without the influence of the heaters? I'm measuring away from the main beam of heat coming from them. The amount of difference temps are only a few degrees off so it's not like it's a serious problem. Right now it's 853 pm and my lights are off and the Che is on and the temps are 79 ambient hot side 77 in the middle and 77 on the cool side wight the Che keeping the temp up. The ambient inside the hot hide right now is 85 and surface temp is at 89-91 and the cool hide temp is 77.5. I'm just getting confused Bc I feel like I have good temps and now your adding a completely new element to the equation. If you could tell me how to measure ambient temp properly that would help a ton!