HVAC Sensors • Air Quality • Industrial IoT

SENXO develops modern HVAC sensors and industrial electronics for smart buildings, indoor air quality monitoring and environmental automation systems. Our focus includes CO2 sensing, humidity and temperature measurement, VOC monitoring, particulate matter detection and embedded industrial communication.

Products & Technologies

CO2 Sensors

Modern NDIR CO2 sensors are becoming a standard element of intelligent ventilation systems. Accurate carbon dioxide measurement allows HVAC systems to dynamically adjust fresh air flow, improving indoor comfort while reducing energy consumption.

RH + Temperature

Relative humidity and temperature sensors are critical for maintaining thermal comfort, preventing condensation and optimizing HVAC efficiency in residential and commercial buildings.

VOC Monitoring

VOC sensors detect volatile organic compounds generated by furniture, paints, cleaning products and human activity. VOC monitoring improves air quality management in offices, schools and public buildings.

PM Sensors

Particulate matter sensors measure airborne dust concentrations such as PM1, PM2.5 and PM10. These sensors are increasingly important in modern air purification and filtration systems.

Knowledge Base

Why CO2 Monitoring Matters in HVAC Systems

Carbon dioxide concentration is one of the most useful indicators of indoor air quality. Elevated CO2 levels often indicate insufficient ventilation and excessive occupancy. In modern energy-efficient buildings, demand-controlled ventilation based on CO2 sensing allows substantial energy savings while maintaining healthy indoor conditions.

Typical indoor outdoor CO2 concentration is approximately 400 ppm. Concentrations above 1000 ppm may negatively affect cognitive performance, concentration and perceived comfort. Modern HVAC controllers increasingly use NDIR sensors to continuously regulate air exchange rates.

Humidity and Temperature in Smart Buildings

Relative humidity and air temperature are fundamental environmental parameters. Excessive humidity may lead to mold growth and condensation, while low humidity negatively affects comfort and respiratory health.

Accurate RH+T sensing is important not only for thermal comfort, but also for proper HVAC balancing, heat recovery optimization and protection of building structures.

VOC Sensors and Indoor Air Quality

Volatile Organic Compounds are emitted by many common materials including paints, furniture, adhesives, plastics and cleaning products. Elevated VOC concentration may significantly reduce indoor air quality.

Modern VOC sensors based on MOX technology allow continuous monitoring of air freshness and help ventilation systems react dynamically to changing indoor conditions.

Particulate Matter Monitoring

Fine airborne particles such as PM2.5 are among the most important environmental health risks. Modern optical PM sensors are increasingly integrated into air purifiers, HVAC systems and smart home automation platforms.

Reliable PM measurement in ventilation systems requires careful mechanical design, proper airflow conditions and long-term sensor stability.

Sensirion Technologies

SENXO is particularly interested in modern digital environmental sensors developed by Sensirion. Their sensors are widely used in HVAC systems, indoor air quality monitoring, industrial automation and smart building applications.

SCD4x CO2 Series

The Sensirion SCD40 and SCD41 sensors combine photoacoustic CO2 measurement with integrated humidity and temperature sensing. These devices are optimized for compact HVAC and IAQ applications.

SGP4x VOC & NOx

Sensirion SGP40 and SGP41 sensors provide advanced VOC and NOx estimation for indoor air quality systems and intelligent ventilation control.

SHT4x RH+T Sensors

SHT humidity and temperature sensors are widely recognized for their precision, low power consumption and excellent long-term stability.

SPS30 PM Sensor

The SPS30 particulate matter sensor uses laser scattering technology and advanced contamination resistance mechanisms for long operational lifetime.

Polska Wersja

SENXO rozwija nowoczesne sensory HVAC oraz elektronikę przemysłową przeznaczoną do systemów automatyki budynkowej, monitoringu jakości powietrza i inteligentnych instalacji.

Nasze zainteresowania obejmują pomiar CO2, temperatury i wilgotności, detekcję lotnych związków organicznych VOC, pomiar pyłów zawieszonych PM oraz komunikację IoT i systemy embedded.

Sensory CO2

Czujniki CO2 są obecnie jednym z najważniejszych elementów nowoczesnych systemów wentylacji. Pomiar stężenia dwutlenku węgla umożliwia dynamiczne sterowanie ilością świeżego powietrza, poprawiając komfort użytkowników i zmniejszając zużycie energii.

VOC i jakość powietrza

Lotne związki organiczne emitowane są przez farby, meble, tworzywa sztuczne, środki czystości oraz wiele innych materiałów stosowanych we wnętrzach. Monitoring VOC pozwala skuteczniej oceniać jakość powietrza wewnętrznego.

Pyły PM

Pomiar PM1, PM2.5 oraz PM10 staje się coraz istotniejszy zarówno w oczyszczaczach powietrza, jak i w zaawansowanych instalacjach HVAC. Wysokiej jakości sensory optyczne pozwalają monitorować stężenie pyłów w czasie rzeczywistym.

Sensirion w HVAC

Sensory Sensirion, takie jak SCD41, SGP41 czy SPS30, są obecnie jednymi z najciekawszych rozwiązań dla inteligentnych systemów wentylacji. Łączą wysoką dokładność, niewielkie rozmiary oraz dobrą stabilność długoterminową.

Contact

SENXO is currently developing a portfolio of modern HVAC and environmental sensing products. We are open to OEM cooperation, industrial partnerships and distribution opportunities.