Measurement of NO2 concentration

Nitrogen dioxide (NO2) is used as an important benchmark for controlling the tunnel ventilation. The VICOTEC321 tunnel sensor continuously measures the exact NO2 concentration. The VICOTEC321 uses the DOAS process, allowing it to detect the smallest concentrations of NO2, e.g., in measuring ranges from 0 to 1 ppm. The VISIC100SF tunnel sensor also measures NO2. This sensor uses an electrochemical process. The lowest measuring range of the VISIC100SF is 0 to 5 ppm.

VICOTEC320

Very low detection limits for NO and NO₂
Automatic function monitoring and self-adjustment
Very rugged design in stainless steel
Automatic beam alignment between sender/receiver unit and reflector

Measurement of NO2 concentration

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Making traffic routes more efficient, safer, and environmentally friendly