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Products / Sensor types
  • Combined Sensors

    Combined sensors for air quality monitoring

  • CO₂ + humidity

    CO₂ + Humidity Sensors

  • CO2 sensors

    CO2 sensors for air quality monitoring.

  • VOC Sensors

    VOC sensors detect harmful substances.

  • RH Sensors

    RH sensors measure relative humidity.

  • Temperature Sensors

    Sensors for measuring temperature.

  • Wireless Sensors

    Wireless battery sensors

  • Duct Sensors

    Duct sensors optimize ventilation.

  • Industrial Sensors

    Industrial sensors ensure reliability.

  • Accessories

    Accessories facilitate the installation of sensors.

  • Refrigerant Leak Sensors

    Sensors for detecting refrigerant leaks.

  • Radon Sensors

    Radon sensors for direct ventilation control.

  • PMx Sensors

    PMX sensors monitor dust particles.

Latest news
    The impact of VOCs on health and productivity in the workplace

About Us

Precision Sensors for Healthy Air: We Measure What Matters

We design and manufacture smart air quality sensors. We pay careful attention to every detail to provide you with reliable measurements and enable you to intelligently manage ventilation systems.

Why do we focus on indoor air quality?

We are called the “indoor generation,” spending the vast majority of our lives indoors. When you think about it, we breathe indoor air for more than 20 hours a day!

That is why we consider a healthy and comfortable indoor environment to be crucial for our health, performance, and overall well-being.

Offices of Protronix with people carrying items. Logo on the wall and the phrase "We Measure What Matters"

How We Started

Our journey began with the development of control electronics for ventilation systems. One day, we realized that truly effective ventilation needs to respond to the current air quality, not preset schedules or estimates. In short, ventilate only when needed and with the performance that the situation requires.

OUR MOTTO: Top-notch sensors for efficient ventilation.

In practice, we often saw ventilation systems running either idle or insufficiently. This motivated us to develop the first CO₂ and relative humidity sensors.

Today, we offer over 60 types of reliable sensors that help implement successful projects and enhance comfort in various environments.

Are you interested in custom sensors?

We do not just manufacture sensors; we also develop them directly. If you have a request for a special project or function, we would be happy to discuss the possibilities of customizing our products to meet your specifications.

If you are interested in customizing a product or developing a new one, let us know – we will do our best for you!

How Time Has Passed

We started with the brain (control electronics) for ventilation units. Then we also needed not only to control ventilation but also to measure air quality in some way and ventilate accordingly. Therefore, we embarked on the development of the first CO₂ and humidity sensors. With the first sensors, we faced challenges with measurement accuracy and stability.