So simple to use--just switch this digital thermometer on insert the 4-3/4-inch stainless-steel probe into any food hot or cold and in no time an accurate reading appears to one-tenth of a degree Fahrenheit. The LED display registers temperatures ranging from -40 to 302 degrees Fahrenheit making the thermometer useful for testing everything from hard ice cream for Baked Alaska to a large roast. Since the thermometer head is not oven-proof the device should not be left in foods during cooking. Turning off the thermometer saves battery power but the only drawback to this product is that the on/off switch is tiny and difficult to move. The protective sheath for the thermometer features a pocket clip and loop to conveniently hold the probe and lists various types of meats along with the USDA recommended internal temperature for each. Clean the thermometer carefully by hand to avoid immersing the head in water. A five-year warranty covers the thermometer against defects. On/off switch conserves battery Digital cooking thermometer gives accurate reading Displays to one-tenth of one degree; easy to use and read Insert into meats removed from oven grill or microwave Temperature range is 40 to 302 degrees Fahrenheit