TFA Dostmann Galileo Galilei Liquid Thermometer, Multi-Coloured Glass, 18-26°C, Freestanding 18.1017.01.54

Place this Galileo Galilei liquid thermometer on a desk or shelf to observe temperature through the rise and fall of five multi-coloured glass spheres. Each sphere carries a metal tag marked in 2°C increments from 18°C to 26°C, floating in a clear liquid inside a cylindrical glass tube. As room temperature changes, the spheres move according to the principle of density, making it both a decorative piece and a functional indoor thermometer.

Key specifications

• Measurement principle: Galileo's principle of density
• Temperature range: 18°C to 26°C, in 2°C increments
• Five multi-coloured glass spheres with metal temperature tags
• Housing material: glass
• Power source: passive, no batteries required
• Mounting type: freestanding

Why choose it

This thermometer combines scientific heritage with visual appeal. The colourful spheres and liquid create an eye-catching display, while the passive operation means no batteries or maintenance. It is a conversation piece that also provides approximate indoor temperature readings.

Ideal use cases

• Home or office decoration with a functional twist
• Educational demonstration of density and temperature
• Gift for science enthusiasts or lovers of classic design

Good to know

The thermometer is intended for indoor use and provides approximate readings. It should be placed on a stable, level surface away from direct sunlight or heat sources for accurate behaviour.