The Cool Color Thermometer Display is pre-loaded and easy to set up. Each display contains 16 60-second thermometers - 4 each: blue, green, red, and yellow. The 60-second thermometer's proven clinical accuracy offers a convenient one-button operation. Results can be read in either Fahrenheit or Celsius. It can be used either orally, rectally, or under the arm. It meets ASTM Standard E 1112 and is latex and BPA free.