Fixed point tunnel anemometer

A robust, self-contained airflow monitor designed to measure air velocity (and temperature when specified) in confined underground spaces.

Using short-path ultrasound measurement technology with time of flight differential, it provides consistent and accurate measurements. Data forms part of a ventilation control air quality management system. Suitable for tunnel, rail and cable tunnels, as well as mining applications.



  • Plug & socket connectors simplify installation & reduce wiring
  • No alignment or interconnection required
  • Accurate readings unaffected by temperature, pressure or humidity
  • No regular service required – fit & forget
  • IP67 rated & designed specifically for use in harsh tunnel environments
  • SCADA / PLC interface options:
    • Current outputs
    • Digital relays
    • RS485 (Modbus RTU)