This convenient and easy to read magnetic thermometer attaches directly to single wall pipes and stove tops for a quick and easy way to monitor burn temperatures. In addition to seeing if the stove is operating at peak efficiency, the gauge will also indicate a low temperature that could be a result of dangerous creosote or soot buildup in the fire chamber or chimney. Indicates from 100 degree Fahrenheit to 800 degree Fahrenheit (35 degree Celsius to 430 degree Celsius).