Multi -Stem Thermometer With External Sensing Probe

A thermometer is an instrument that measures temperature.

It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air.

The three most common units of measurement for temperature are Celsius, Fahrenheit, and kelvin.

The Celsius scale is part of the metric system.

The metric system of measurement also includes units of mass, such as kilograms, and units of length, such as kilometers.

The metric system, including Celsius, is the official system of measurement for almost all countries in the world.

Most scientific fields measure temperature using the Celsius scale.

Zero degrees Celsius is the freezing point of water, and 100 degrees Celsius is the boiling point of water.

Three nations do not use the Celsius scale.