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AMERICAN Scientific, LLC
Customer Service: 888-490-9002 
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Heat > GALILEO THERMOMETER 13" (F)The Galileo thermometer consists of a sealed glass tube that is filled with water and several floating bubbles. The bubbles are glass spheres filled with a colored liquid mixture. Attached to each bubble is a little metal tag that indicates a temperature. A number and degrees symbol are engraved on these calibrated counterweights. The bubble that sinks the most indicates the approximate current temperature. Range 64 to 80 Fahrenheit. Length 13”
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