The Precision Cooker can reliably hold temperatures from 77°F (25°C) to 212.5° F (99°C). The device itself can read higher and lower temperatures, but will not operate outside of the above ranges.

The Precision Cooker cannot boil water or cool water. Also keep in mind if your device is not going above 99° it may be set to C, when your desired temp is in F, and vice versa if you cannot set it below 77° it may be set in F, when you want C.