Nitrogen dioxide (NO2) measuring in road tunnels has long been demanded but never realized due to the lack of suitable measuring technology. The VICOTEC320 from SICK MAIHAK solves this problem. It measures smallest concentrations of NO2 and NO, visibility and temperature. And this with industrial proven components – without additional gases for zero or adjustment points.

• Fast representative In­situ measurement with very low detection limits for NO and NO2
• Automatic function monitoring and self­adjustment
• Independent maintenance prompt when soiled