
Cutting-edge Pressure Measurement Technology
Pressure Measurement Technology for the Process Industry – Backed by 80 Years of Experience
Lyth in a Nutshell
Lyth is Finland’s leading manufacturer of pressure transmitter technology
We develop precision solutions for the process industry, from gauges to transmitters. Our commitment to innovation and reliability turns challenges into opportunities. Join us in shaping the future of pressure measurement technology.


We serve globally
Lyth’s roots are firmly planted in Riihimäki, Finland. However, our customers are located across the globe, and we are proud to support them in international projects as well.
Lyth’s journey
Lyth-Instrument Oy began manufacturing pressure gauges in 1943.
Between 1975 and 1979, our production expanded to include pneumatic and hydraulic pressure transmitters, marking a significant step forward toward modern pressure measurement technology used in industrial applications.
In 1985, we delivered the first Lyth pressure transmitters with a 4–20 mA output.
Applications of pressure gauges
A pressure gauge is essential for measuring the pressure of gases or liquids within a container. It works by displaying the force exerted by the substance onto a sensor inside the device. Typical applications include pressure monitoring in systems such as boilers, fuel tanks, medical equipment, and HVAC systems.
It plays a critical role in maintaining optimal performance and preventing overpressure situations that could lead to system failures or accidents. For this reason, pressure gauges are vital for safety, system efficiency, and maintenance across a wide range of industrial and domestic applications.

How can we help you?
If you have any questions about our products, please don’t hesitate to contact us.
Frequently Asked Questions
Need more information? Check out our comprehensive list of frequently asked questions to find answers to common questions about our pressure gauge technology and solutions.