Buy the Learning Resources 24" Demonstration Thermometer at Michaels. Room temperature, boiling, freezing, and body temperatures are highlighted on this 24" x 5.75" plastic device. Room temperature, boiling, freezing, and body temperatures are highlighted on this 24" x 5.75" plastic device. Fahrenheit and Celsius scales -40 degrees to 50 degrees C and -40 degrees to 120 degrees F. Adjustable red band. Details: Candy red 24" x 5.75" Easy to read thermometer Adjustable red band For ages 6+ | Learning Resources 24" Demonstration Thermometer | Michaels.