Biral is an established supplier of meteorological visibility and present weather instruments. Used all over the world the Biral VPF range of Visibility and Present Weather sensors provide outstanding levels of accuracy and performance.
Their reliability and durability is reflected in their extensive use in critical applications such as marine navigational aids, roadside fog warning and airport RVR systems. The first sensors to use forward scatter in combination with an infra-red LED light source, the range remains at the forefront of visibility and present weather measurement and are the sensor of choice in extreme environments.

In 2009, Biral launched the SWS range of present weather sensors which are based on the same successful HSS technology but which have been designed for use in RWIS applications, by wind energy producers and for general meteorological data collection.




  • Tel: 01224 791222
  • Fax: 01224 791555



  • Muir Matheson Limited
  • Aberlan House
  • Woodburn Road
  • Blackburn Industrial Estate
  • Aberdeen
  • AB21 0RX
  • United Kingdom
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Registration Details

  • Registered in Scotland No. SC182820
  • VAT Registered No. GB 716 9914 03
  • Registered Office: Aberlan House