Re: Do you put the thermometer probe under the basking spot ?
Posted by rogervan on 12/12/2015, 10:13 am, in reply to "Do you put the thermometer probe under the basking spot ?"
The short answer is No. The basking spot lamps shine directly onto the probe, which soaks up heat, giving a very high false reading. Try laying a fork under the hot zone and see how hot it gets.
I keep my probes in the center of the viv, setting the thermostat at 85F. The warm end with the heating equipment is run by the thermostat, so they turn on when the readings drop in the middle of the cage. They have to produce enough heat for it to reach out to the middle of the cage and heat the middle part to the pre-set 85F. That makes the warm end under the heaters warmer than the probe reads in the middle of the cage.
Your solution is to get a Radio Shack Non Contact thermometer. You can tear off a 2 inch X 2 inch piece of newspaper and put one under the heating zone, and the other in the center of the cage. Because there is so little mass in a bit of newspaper, it's temperature will rocket up to 140 or 150. But if you put a grown iguana there, it's skin will read in the low to high 90's which is perfect for basking. My iguanas loved basking in that high heat. But the surface of their bodies held at about 85 to 95F.
Is this as clear as mud?