Air quality measuring device for ventilation control and accurate nitric oxide monitoring in road tunnels. Measuring values (optional) NO2, NO, VIS, CO, Temp
The Gas Adjustment Kit continuously checks the gas type and measuring range set for agreement with gas type and measuring range of the connected gas sensor and outputs an error if there is an inconsistency.
An overview brochure about traffic and tunnel sensor, their development during the last 60 years, the main applications in front and within a tunnel as well as the measuring devices at a glance
Emission Monitoring Solutions – broad instrument portfolio and
longstanding experience
Competence Brochure (CP)
English version - 01/2025
New version available in English
An overview brochure about emission monitoring, their measuring principles and technologies, global requirements and services, a selection guide and the measuring devices at a glance
Continual monitoring of nitrogen oxides (NO and NO2) and
visibility inside tunnels
White paper (WP)
English version - 11/2025
New version available in English
It is essential to monitor air quality and visibility in tunnels to ensure road safety. Measuring the visual range and CO concentration has therefore been part of standard practice for many years now. ...