I can't even figure out which are the correct temperatures now. The higher up the probe is, the higher the temps (100F+) say on the thermometer. The lower the probe is, the lower the temps (85F-89F). And in the middle, the temps say 89F-92F. Not sure where to stick the probe. I have a heat lamp (60 watt basking bulb) that I use as well. Getting a UTH for the BPs at a reptile expo in November, so the lamps are temporary. Also getting a infrared heat bulb soon. WHERE DO I PUT THE PROBE!