Review on Thomas Scientific Traceable Thermometer Display by Fred Griffin

Very accurate I'm sure and a nice big display but totally useless as I need a Fahrenheit display and there is absolutely no way to change C to F - despite the photo and description in this ad. No buttons, no instructions. Nothing. Other Thomas Scientific models have a switch on the back of similar devices. This device is not listed as the current model on the Thomas Scientific website. Validated by Revain Answers and Thomas Scientific. That's just funny.