I was getting 77 then it went to 78 in the far far corner of my cage blocking the probe from getting IR from the RHP. My first readings in the middle of my cage were 82 but I never blocked the probe from getting IR. do you feel that's a good test ? I figure if I get 77-78 far corner, the RHP is doing ok or better mid cage and hot side. I spoke to Reptile Basics, they said this is their preferred way of heating a cage. My snake ate again another week later. This was yesterday. Cool side temps went up, it got warm outside. Snake spent the night on the cool side it seems. Hmmm. Well I'll try and block the probe mid cage and see what temps I get. I know blocking the probe is like being in the shade from sunlight. The probe reading should only be reading air temps if it's shaded from the IR of the RHP.