Your specialist for
sensors and
sensor systems
since 1975

Over 50 years of experience
in sensor technology and sensor systems

Since 1975, KELAG Künzli Elektronik AG has stood for solid expertise in sensor technology.
As the official Swiss partner of Vaisala, as well as of other selected manufacturers, we work with technologies that are deployed worldwide - and with customers who place the highest technical demands.

Our team supports projects with deep technical understanding, experience and a clear focus on the application.
Depending on the task, we supply individual sensors, complete measurement systems, or take responsibility for engineering, system design and integration.
Where standard solutions reach their limits, we develop customer-specific solutions, particularly for industrial and OEM applications.

Our aim is to deliver well-engineered, reliable and economically sound solutions -
from individual sensors to complete systems, from prototype to series production.

Business areas

KELAG combines consulting, engineering and its own product development in three clearly defined business areas.
This results in reliable solutions for meteorology, industrial measurement technology and scalable OEM applications.

Meteorology

Measurement solutions for weather, climate, and environment.
Support for authorities, research, and operators of critical infrastructure.

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Industry - Processes

Measurement expertise for industrial process environments.
Reliable solutions for quality, safety, and efficiency in operation.

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Industry - OEM

Development partner for industrial sensor solutions.
Supporting OEMs from the initial idea to series production.

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Products

Today, applications in industry, environment and meteorology require state-of-the-art sensor solutions. Our experienced engineering team works closely with you to achieve this. Our extensive know-how, our comprehensive experience and engineering expertise, our wide range of products and the representation of various renowned sensor manufacturers are the best possible prerequisites for us to develop the best possible sensor solutions for you.

No matter how specific your customer's requirements may be: with us, you will find the perfect and economical solution for every requirement, tailor-made!

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Humidity / Temperature

share_location

Proximity / Position

Switch

Measure

Customised solutions

thermostat

Dewpoint

air

Air Quality

Transmitter

System

network_check

Acceleration / Vibration

Voltage output

Current output

Digital interface

Angular acceleration / GYRO

Customised solutions

solar_power

Solar and global radiation

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Inclination / Angle

Carbon Dioxide CO2

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Hydrogen Peroxide H2O2

speed

Pressure

humidity_high

Moisture in Oil

propane

Methane CH4

Probes

cloud

Cloud height

Transmitter

System

XXX

rainy

Precipitation

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Condition of the road and piste surface

visibility

Visibility and current weather

Probes

System

wind_power

Wind (speed, direction)

radar

Weather Radar

System

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Weather Lidar

System

thunderstorm

Thunderstorm

transmitter

System

What makes us stand out

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Operation-focused consulting

Meteorological and industrial measurement technology must work reliably in daily operation.
We design measurement solutions based on real-world conditions – not just on datasheets.

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Technical expertise instead of sales talk

We provide technically sound and practical advice, with a clear understanding of engineering, operation and maintenance.

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Standard products and custom solutions

We supply proven standard products and develop customer-specific solutions – robust, pragmatic and suitable for series production.

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PShort paths, clear responsibility

One dedicated contact, short decision paths and direct communication – from enquiry to implementation.

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ISO 9001:2015 certified

Our ISO 9001:2015 certification ensures consistent quality, clear documentation and reliable processes.

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Long-term cooperation

Many of our solutions have been in operation for years – supported by service, spare parts and ongoing support.

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Services

In addition to the distribution of state-of-the-art sensors and sensor systems, our services also include project management and engineering services for integration into existing or new systems or the implementation of system replacements.

We also provide repairs and calibrations for our products to ensure their performance and reliability. Our experienced team of technicians ensures rapid troubleshooting and minimal downtime.

Our maintenance and support service ensures a long product life and maximises the availability of your sensors and systems. Through regular maintenance intervals and fast response times in case of emergency, we ensure that your systems always function perfectly.

Thanks to our services, you can be sure that your sensors and systems are always state-of-the-art and offer optimum protection and safety. Contact us to find out more. We will be happy to help you meet your requirements.

Our sales team loves challenges! They will be happy to help you find the most suitable measuring solution for you. With us, you are choosing a reliable partner who not only wants to sell you a measuring device, but also wants to work out a solution together with you that is as economical as possible for both sides.

Some of our system solutions only exist thanks to you, i.e. thanks to specific customer requests that were finally able to prevail. With our engineering and the personal skills of the individual employees, we have been able to implement a wide variety of system solutions in Switzerland on the basis of supplier products. Since the 1990s, individual solutions have been expanded again and again or individual components have been replaced.

Highest accuracy must be maintained! To ensure the best possible, there is only one thing to do: regularly calibrate all measuring instruments. It is also advantageous to have the device calibrated by the manufacturer - our suppliers offer high-quality calibration and repair services for this purpose. So simply send your device to us for calibration and / or repair and enjoy a stress-free service. We are able to meet all original requirements and strict quality standards.

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In addition to the installation and commissioning of your system, we offer maintenance and support and help you with concerns, operating questions or setting issues.

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News

Indigo product family - the modular instrument platform

Step into the future: A groundbreaking new method is available to monitor your essential industrial processes. The Vaisala Indigo product family sets new standards in industrial measurement, thanks to globally leading sensor technology and a modular design. With interchangeable intelligent probes, robust transmitters, and the powerful PC software Vaisala Insight, it forms a resilient ecosystem to ensure energy efficiency, safety, and product quality in your process.

Industry - Processes

06. September 2023

tb_kelag_neigungs-und-beschleunigungssensoren-banner

KELAG accelerometers

The accelerometers manufactured by KELAG are based on high-precision "bulk" or "three-dimensional" micromechanical technology. In addition, internal gas damping stabilizes the measurement signal even under the most difficult conditions. The temperature response is highly stable and the hysteresis is practically unmeasurable. This highly robust technology offers the following advantages:

Industry - OEM

05. June 2024

IoT sensors for winter maintenance

Powered by the latest IoT technology, Wx Horizon Premium sets new standards in weather information for winter maintenance by using connected observation networks, advanced forecasting capabilities and alerts to support intelligent, data-driven treatment decisions.

Meteorology

03. May 2023

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