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Visibility

Sensors for measuring visibility and present weather

Wide range of sensors designed for monitoring on roads and in tunnels. Models with a wide measuring range are available to detect fog and haze; models with both digital and analog outputs, as well as relays for activating external equipment to be integrated into intelligent transport systems and used to automatically switch warning signals in changing visibility conditions.

All models are also “Present weather” sensors, that is, they can measure the intensity of precipitation by providing the analysis of water particles: fog, rain, snow or mixed form.

Visibility

Highlighs

  • Visibility and Present weather sensors (DPA305/311.1);
  • Only visibility sensor (DPA312);
  • Lens self-cleaning system by compressed air (DPA311.1);
  • Integrated relay output to activate alarms (DPA305);
  • Analogue output 4-20 mA (DPA305).

Visibility

Available Models

Image

Visibility and presence weather sensor

Code: DPA311.1

Analyses water particles of different forms in the air as fog, rain or snow or mix form.
Image

Visibility sensors optical backscatter

Code: DPA312

Visibility sensors with a measuring range up to 2 km is designed to detect fog and haze on roads and in tunnels.
Visibility sensor forward-scattering at 45°

Visibility sensor forward-scattering at 45°

Code: DPA305

Visibility sensor with a measuring range up to 2 km designed to detect fog and haze on roads and in tunnels
documents LSI Lastem

Visibility

Documents