200 Series – TunnelTech 203

The TunnelTech 203 Air Quality Monitor, is an essential part of any road or rail tunnel safety system. Firstly, it monitors the atmosphere within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health and for drivers to clearly see the road ahead.
The TunnelTech 203 analyser uses well proven infra-red techniques to determine CO and NO concentrations. As
there is only one moving part, reliability levels are very high and maintenance requirements are extremely low.