The Braun BNT400 No Touch + Touch Digital Thermometer?uses patented breakthrough technology to make checking temperature easier, stress-free and accurate. This dual technology means that you get fast and precise temperature readings in two ways: In the Touch mode by placing the thermometer on the forehead and in No-Touch mode, by holding the thermometer in front of your child's forehead.?The Food & liquid mode allows you to easily measure your baby food, drink or even bath temperature.?