Frequently asked questions

Kunak devices are designed for the perimetric monitoring of diffuse emissions or leak detection in areas not classified as ATEX.

They can be adapted to operate in explosive-risk environments, complying with ATEX Zone 1 requirements, provided the system is properly configured.

The lifespan of each cartridge depends on the sensor type and environmental conditions, typically ranging from 12 to 36 months. More details can be found in the catalogue.

Kunak Cloud services are renewed annually to maintain updated analysis, calibration, and data traceability.

Kunak devices can be installed on lamp posts, walls, masts, or tripods.

Thanks to their lightweight and modular design, they can be easily relocated by detaching the base and reattaching it elsewhere.

Sensors are factory-calibrated and supplied with an official calibration certificate.

To maintain accuracy, a remote calibration or adjustment is recommended every three months or after relocation or seasonal changes.

Calibration can be performed through:

• co-location with a reference station,
• gas hood calibration with standard gas cylinders, or
• remote adjustment using historical data.

The method depends on the project requirements and available budget.

Yes. All Kunak devices include Modbus RTU RSxx protocol, allowing local data transmission and reading without relying on internet connectivity.

The system transmits data via cellular (4G/3G), Ethernet, Wi-Fi, or Modbus, adapting to the available network infrastructure at each site.

Devices include an internal backup battery providing between 3 and 30 days of autonomy, depending on the configuration and active sensors.

Installation is recommended at a height of 3–4 metres above ground to ensure representative measurements and prevent interference or vandalism.

Yes. It features high-speed internal memory capable of storing data for up to 15 days without an internet connection, ensuring data continuity.

Yes. Kunak AIR Pro supports up to 6 meteorological probes, and Kunak AIR Lite up to 2, depending on the model.

This allows correlation between environmental variables and pollutant concentrations.

Yes, provided the speed does not exceed 20 km/h. This ensures measurement stability and accurate environmental data capture.

Sensor-based devices are not governed by a single certification.

Kunak continuously validates its devices in the field alongside independent bodies.

These tests ensure that the data complies with the European Air Quality Directive and US EPA standards.

Yes. Kunak AIR Cloud is essential for temperature and humidity compensation, remote maintenance, auto-diagnostics, baseline correction, data validation, and ensuring data traceability.

Yes. The devices can be used in industrial, agricultural, or logistics environments, providing accurate pollutant control even indoors.

• Kunak AIR Pro: 24-channel, MCERTS-certified sensor that measures fine and coarse particles (PM1, PM2.5, PM10) with indicative measurement quality.
• Kunak AIR Lite: 5-channel, non-MCERTS sensor specialised in detecting fine particles.

Data can be automatically integrated via REST API, Modbus, or FTP, facilitating connection with external environmental or industrial management systems.

• Calibration adjusts the sensor’s response against a traceable reference (reference station or certified gas) to determine uncertainty.
• Correction modifies the sensor’s response without an external reference to reduce error or drift but doesn’t quantify uncertainty.

In summary, calibration uses an external reference, while correction is an internal adjustment to maintain sensor reliability. More information on page 35 of the catalogue.