Combined measurement of opacity 2 gases simultaneously (CO, NO2 or NO)
Reduced installation and maintenance costs
Easy calibration without dismantling
It is essential to provide tunnel or car park users satisfactory air quality. Using a single device, GasOPAC-4000 permanently checks the different toxic gas levels (CO + NO2 or NO) and the opacity, its all-in-one design allows for quick installation and easy maintenance.