Check-Air

The Check-Air system is a monitoring unit designed for continuous outdoor ambient air quality monitoring. The device combines four electrochemical channels for the detection of CO, SO₂, NO₂, and O₃ with an optical sensor for particulate matter (PM1, PM2.5, and PM10), along with temperature and humidity measurements for environmental compensation of the readings.
Data transmission is carried out via a LoRaWAN network, making the product suitable for distributed sensor networks in smart cities, industrial monitoring, and remote environmental control applications.
The ABS enclosure, with an IP45 protection rating, allows for outdoor installation, while the 220V AC power supply ensures continuous system operation.

MULTI-GAS MONITORING
The device integrates four AQ7 sensors dedicated to CO, SO₂, NO₂, and O₃, with measurements in ppb/ppm and a built-in compensation algorithm to ensure long-term signal stability and accuracy.

PARTICULATE MATTER SENSOR
The NextPM optical sensor measures PM1, PM2.5, and PM10, with a range of 0–1000 µg/m³, a detection limit below 1 µg/m³, and a selectable refresh rate of 1/10/60 seconds.

TEMPERATURE AND HUMIDITY
The system includes temperature and relative humidity measurement, also used for environmental compensation and correlation of air quality data.

LoRaWAN CONNECTIVITY
Data transmission is carried out via LoRaWAN in the Sub-GHz 868 MHz band, with transmission power up to 14 dBm and sensitivity down to -137 dBm.

OUTDOOR ENCLOSURE
The electronics are housed in a Fibox ABS enclosure, with IP45 protection rating, dimensions 120 × 200 × 75 mm, suitable for outdoor applications.

• Outdoor ambient air quality monitoring
•  Industrial areas and urban monitoring
• Construction sites, landfills, and emission-sensitive locations
• Integration into IoT monitoring networks with LoRaWAN connectivity