I don't have any pictures. But if you go to Walmart, in the paint, homegoods section there will be outdoor thermometers. It is there. It is made by Accu-rite. It days indoor outdoor digital thermometer with probe. It also measures humidity!! It is around 12.00 I place mine inside tank underneath the substrate.

Do you have it hooked up to a thermostat? At first, I didn't, and when I checked the temperature it was 110 degrees under the substrate. Hope this helps.

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