Tunnel Air Quality Monitors

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The TunnelTech 201 analyser uses well proven infra-red techniques to determine CO and NO concentrations and optical attenuation to monitor visibility levels. 

CO, NO & Visibility

The TunnelTech 202 analyser uses well proven infra-red techniques to determine CO concentration and optical attenuation to monitor visibility levels.

CO & Visibility

The TunnelTech 203 Air Quality Monitor continuously monitors CO, & NO and is an essential part of any road or rail tunnel safety system.

CO & NO

The TunnelTech 204 analyser uses well proven optical attenuation technology to monitor visibility levels.

Visibility

The TunnelTech 205 NO2 Air Quality Monitor is a highly efficient transmissometer configured for the continuous measurement of Nitrogen Dioxide in road tunnels.

NO2

The TunnelTech 501 analyser electrochemical cell technology to determine CO, NO & NO2  concentrations.

CO, NO & NO2

The TunnelTech 701 analyser measures CO, NO & NO2 concentrations as well as optical attenuation to monitor Visibility levels.

CO, NO & NO2

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