Well, now i have another problem....My controller stat reads between 98.6 and 100(lows & highs) https://www.amazon.com/gp/product/B00F05UI8O/ref=oh_aui_detailpage_o05_s01?ie=UTF8&psc=1 I also have a https://www.amazon.com/gp/product/B01H1R0K68/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1 and i have one of the mercury wall hangers with tin shroud. It seems they all give a different reading. The merc and the lil square thermometers do not fluctuate like the controller, but they still all read differently. Merc read *102 and the lil square one reads 93.4, while the controller stat fluctuates between 98.6 and 100... Any suggestions on what to buy maybe on Amazon that you have found to be accurate?. Cant reall do the ice bath thing on mine..Thanks.