AIRFLOW Tunnel Sensors

AIRFLOW is a robust fixed point solution that uses proven ultrasound technology to measure the velocity of air within a tunnel. These measurements can be used as part of an air quality management system for ventilation control within a tunnel or other confined space such as cable tunnels or mining applications.


  • Proven short path ultrasound measurement technique using time of flight differential
  • No moving parts, wear items or other components that require routine replacement
  • Self-contained single component instrument
  • Optional pre-calibrated temperature measurement
  • Intelligent analyser with a range of onboard industry standard outputs
  • TSCU-R compatible


  • Plug and socket connectors simplify the installation and decrease the amount of wiring required
  • Easy to install with no alignment or interconnection required
  • Provides accurate readings which are unaffected by temperature, pressure or humidity
  • Free from moving parts to maximise the lifetime of the sensor
  • Long service intervals with no drift and low long term maintenance requirements
  • IP67 rated and designed specifically for use in tunnels and regular tunnel washing.


For further information and technical specifications about this product please download a product brochure alternatively contact us via phone or email and a member of our team will be happy to help.

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We have worked with Tunnel Sensors for several years. The equipment is sensibly priced, reliable and very easy to commission and service. The after-sales backup is excellent.

Dave Grant
Emaccs Ltd., UK

Tunnel Sensors



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