Write temp 3-in-1 digital thermometer by safety 1st makes temperature taking easy. With three different methods to choose from and a quick 20 second reading, you'll know quickly whether your little one's temperature has risen above normal. The write temp also helps you avoid cross contamination with a handy personalization feature. Write in which child is using the thermometer and germs will have one less path to take. The thermometer package also includes a fever chart which you can use for easy reference.