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Smoke detection for early fire detection in road tunnels

         Every minute counts in a tunnel fire: Because the concentration of soot particles increases faster than the temperature, optical sensors can detect a fire very early. The VISIC50SF tunnel sensor uses the scattered light method with protected measurement volume. It is able to achieve such high reliability that its alarms are processed automatically.

VISIC50SF
  • Visibility (K value) measured according to the scattered light measurement principle
  • Highly available – no moving parts
  • Quick and reliable smoke detection
  • Software developed in accordance with EN 61508 (SIL1)
  • Low faulty alarm rate
  • IP 6K9K enclosure rating thanks to a rugged stainless-steel housing
  • Fog evaporation through integrated heating element (optional)

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Making traffic routes more efficient, safer, and environmentally friendly