with dioptric lenses

Stands approximately 12" high

The PS200 offers a pure white LED beam

Made from a glass bulb with much of the air removed to form a partial vacuum

In the folded position

Tear Drop Galileo Thermometer, small, 11.5cm Size:11.5cm with dioptric lensesOur distinctive ornamental (but functional) thermometers utilise 17th century astronomer Galileo Galilei's discovery that the density of liquids varies with temperature. Carefully weighted glass globes are suspended in a liquid filled tube, where they sedately sink or float as the surrounding air gets hotter or colder. Temperature is indicated by the engraved brass tag on the lowest floating globe. Temperature is shown in Celsius.