Temperature measurement has played a vital role in science, industry, and everyday life for centuries. What began as basic observations of heat has evolved into a field dominated by precise instruments like the temperature sensor, temperature transmitter, temperature controller, and temperature meter.

Early Attempts at Measuring Temperature

Ancient civilizations tried to gauge heat by observing physical reactions – such as the expansion of liquids or changes in color. But it wasn’t until the 17th century that the first practical temperature meters were developed.

In 1593, Galileo Galilei designed a rudimentary water thermometer. Later versions used alcohol or mercury, offering more consistent readings. In 1724, Gabriel Fahrenheit introduced the Fahrenheit scale, paving the way for standardized temperature measurement.

Industrial Era and the Rise of Scientific Measurement

The 19th century brought scientific and industrial revolutions. Key discoveries in electricity and thermodynamics led to new technologies. In 1821, Thomas Seebeck discovered the thermoelectric effect, laying the foundation for the thermocouple – a device that converts heat differences into electrical voltage.

Around the same time, resistance temperature detectors (RTDs) were introduced. These temperature sensors work by measuring the resistance of metals like platinum, which changes predictably with temperature.

Modern Temperature Measurement Devices

The 20th century saw an explosion in electronic innovation, enabling precise digital systems for measurement and control. Today’s technologies include:

  • Digital temperature meters – providing accurate readings and data logging,
  • Temperature transmitters – converting sensor signals into standardized outputs (e.g. 4–20 mA),
  • Temperature controllers – automating thermal processes in industry and laboratories.

These components work together in modern automation systems, used in industries such as manufacturing, HVAC, food processing, and energy.

Our Legacy Since 1978

We have been manufacturing temperature sensors, temperature transmitters, temperature controllers, and temperature meters since 1978. With decades of experience and innovation, our products meet the highest standards of precision, reliability, and durability.

We support clients across multiple industries, delivering both standard and custom temperature sensors tailored to individual applications.

Conclusion

The history of temperature measurement is a testament to humanity’s quest for accuracy and control. Thanks to modern science, we now benefit from advanced devices such as the temperature sensor, transmitter, controller, and meter, which enable safe and efficient process management. Trusting a manufacturer with experience — like us — ensures your systems are built on a foundation of proven quality.