The SWS-100 is optimised for use in applications where accurate and reliable visibility measurements are required with the addition of fundamental WMO 4680 precipitation codes.


  • Selectable measurement range up to 75 km
  • Hood heating for use in extreme environments
  • Digital, analogue and switching relay outputs
  • Comprehensive self-test and maintenance data
  • 3 years warranty

The availability of digital, analogue and switching relay outputs provides the flexibility to connect to a wide range of ITS (Intelligent Transport Systems) and other data controllers.

The unique ability to switch equipment using a fog relay and /or a precipitation relay is a feature of the SWS-100 sensor. For example you can set the relays to automatically switch a speed reduction sign when the visibility is below 100 m and then switch an additional ‘danger of aquaplaning’ alert when it rains.

This is a quality sensor at an affordable price (less expensive than competitive sensors) with a remote monitoring and self test system to keep maintenance call outs to a minimum. Therefore, the savings released from installing and running a network of SWS-100 sensors can be substantial. The SWS is lightweight, portable and easily pole mounted.

SWS-100 - Product sheet