The AIRFLOW offers a rugged, non-contact solution for the universal requirement to monitor air velocity and direction in the tunnel.

The ILLIOS measures illuminance inside the tunnel bore to affect safe lighting conditions for drivers.

The LUMIOS MkIII measures the level luminance, or brightness, at tunnel portals to ensure that the visual perception of drivers is maintained, both day and night.

The VIPA-L is a long path visibility monitor designed for use in ambient environments such as road, rail or other industrial applications.

The ECOM is a compact electrochemical gas
sensor suitable for continuous monitoring of CO within ambient environments.

The ENOX is a compact electrochemical gas
sensor suitable for continuous monitoring of NO2 within ambient environments.

The VICONOX provides a total monitoring solution
for the measurement of NO2, NO, CO, visibility
and temperature within traffic tunnels.

A range of optional accessories to assist with
installation, operation and maintenance of our
tunnel monitors.