5 Multi Colored Spheres with Gold Plated Temperature Tags. Temperature Range of Thermometer in 4 Degree Increments from 64 to 80 degrees Fahrenheit.
Galileo Thermometer How to read Locate the lowest temperature tag from the upper group of spheres in the cylinder.
How your Galileo Thermometer works: If the room temperature rises the spheres will sink one by one to the bottom of the cylinder. If the room temperature falls the spheres will fall one by one to the bottom of the cylinder.