How it works

The Airyx Open Path NH₃ analyser offers contact-free ammonia monitoring over an open path through the investigated area, covering distances from 20 to 150 meters. Its multi-path capability and automated alignment deliver real-time, reliable data with low maintenance, making it ideal for agricultural, industrial, and environmental monitoring.

Technically, it uses Differential Optical Absorption Spectroscopy (DOAS) with a UV deuterium lamp as a stable light source and a compact spectrometer for spectral analysis. The fully motorised telescope head enables remote alignment and adjustment along multiple retroreflector paths.

The Airyx NH₃ Open Path Compact overcomes the challenges of NH₃ air quality monitoring with:

• Calibration-free, direct open-air measurement using the DOAS principle
• Extended coverage, with light paths up to 150 m over the target area
• High-precision, high-resolution data, enabling detailed monitoring
• Compact and flexible design for easy, long-term deployment
• Multi-species capability, allowing simultaneous NO and SO₂ measurements
• Exceptional sensitivity, with an NH₃ detection limit of 1 ppb at 100 m path length

Applications

• Air quality and workplace safety monitoring
• Agriculture emission
• Industrial emission and process control
• Fence line monitoring
• NH₃ spatial distribution analysis