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Tunnel Visibility Monitors

The TunnelTech 101 Visibility Monitor (VIS)  monitors the visibility within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air for drivers to clearly see the road ahead.

The TunnelTech Cold Smoke Monitor detects smoke from a fire to rapidly warn the operator of the hazard.

Related Products

TunnelTech 201 CO, NO, Visibility Monitor
TunnelTech 205 NO2 Monitor

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