The VICOTEC410 series of compact analysers provide measurement values for determination of visibility or carbon monoxide concentrations in road tunnels.

• VICOTEC411 for measuring visibility
• VICOTEC412 for determing CO concentrations
• VICOTEC414 for the simultaneous measurement of visibility and CO concentrations

These intelligent measurement devices request maintenance when sensors are polluted — reducing maintenance costs to a minimum. The VICOTEC411 permanently monitors visibility in a tunnel and thus provides continuous information on light conditions. A continuous, real-time control signal provides optimum ventilator efficiency. The VICOTEC412 monitors CO pollution within the tunnel atmosphere itself. The VICOTEC414 offers combined measurements for simultaneous monitoring of both visibility and CO concentrations.