Air Quality Sensors – Protronix s.r.o.

For efficiently controlled ventilation

Choose from a wide range of sensors.

Sensors for efficient control of ventilation units, heat recovery, air conditioning, heat pumps, etc. in industry, households, offices, and more, with development and manufacturing in the Czech Republic.

Refrigerant Leak Sensors

Sensors for detecting refrigerant leaks.
Radon Sensors

Radon sensors for direct ventilation control.
PMx Sensors

PMX sensors monitor dust particles.
Combined Sensors

Combined sensors for air quality monitoring
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.

Combined sensors

CO₂ + humidity

CO₂ + humidity sensors
Humidity + Temperature

Humidity + temperature sensors
VOC + humidity

VOC + humidity sensors
CO₂ + temperature

CO₂ + temperature sensors
CO₂ + VOC

CO₂+VOC sensors

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Czech Quality

What our customers say about us

Protronix s.r.o. – a trusted Czech supplier of sensors with a long-standing tradition and satisfied customers.

Communication with Protronix is excellent, the offer and technical documentation are great. We really appreciate the easy installation of the sensors and especially the built-in auto-calibration feature, so we do not need to service the sensors during the entire operation.

Martin Minář, managing director | DAVID SERVIS Ltd. | web

Our collaboration with Protronix has lasted for several years, and I cannot praise it enough. What pleases me the most is the excellent quality of their sensors and the reliability of their deliveries – even when we occasionally need goods practically overnight, they always accommodate us. We definitely count on Protronix in the future as well.

Roman Kubišta | SORKE, Ltd. | web

We have been collaborating with Protronix for six years now and can only recommend the partnership. You can always reach them, receive exactly the goods you ordered, and if the ordered goods happen to be out of stock, you are informed about it before shipping. Even custom production or coating of sensor housings is not a problem.

Filip Rensa | PROFI recovery s.r.o. | web

In 2025, we successfully launched the project “Administrative Building with Radar Tower – ELDIS Pardubice,” within which Protronix s.r.o. supplied us with spatial CO₂ sensors for air conditioning. Communication and delivery of goods were reliable, fast, and of high quality. We also appreciate their ability to flexibly respond to special requests and resolve them quickly to the customer’s satisfaction.

Ing. Jan Málek | ACP Engineering Ltd. | web

VOC + humidity

CO2 + temperature

CO₂ + VOC

Accessories

Refrigerant Leak Sensors

Radon Sensors

PMx Sensors

CO2 sensors

Combined Sensors

CO2 + humidity

VOC Sensors

RH Sensors

Temperature Sensors

Wireless Sensors

Humidity + Temperature

Duct Sensors

Industrial Sensors

Reliable Czech sensors for small and large projects.

PROTRONIX EXHIBITS AT MCE MILANO 2026