This dual thermometer features large, easy to read markings for -20 degrees to 120 degrees Fahrenheit and -30 degrees to 50 degrees Celsius. Filled with red-oil based liquid. This is a great thermometer for classroom use or home use. Show your students how to read temperatures in either Fahrenheit or Celsius. Explain how the thermometer works--the red liquid goes up the glass tube when heated and goes down the tube when cooled. A must-have for any science classroom!
Warning: Thermometer is made of glass, which could break upon impact. Use caution when using thermometer.
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