The surface temperature on all our resistance heating pads, except Soft Touch®, is a maximum of 135°F - 140°F. If you use one of our Soft Touch® or HeatSenseTM heating pads, you may choose a temperature from the following settings: Lo: 110°F Medium: 138°F Hi: 160°F Health at Home heating pads are engineered to never exceed 176°F, the temperature limit set by Underwriters Laboratory.