{"title":"Visibility \u0026 Present Weather","description":"\u003cp\u003eForward-scatter visibility and present-weather sensors for aviation, roads, tunnels, offshore installations and meteorological monitoring.\u003c\/p\u003e","products":[{"product_id":"visibility-and-present-weather-sensor-vpf-750","title":"Visibility and Present Weather Sensor VPF-750","description":"\u003cp\u003eThe \u003cstrong\u003eVPF-750 Visibility and Present Weather Sensor\u003c\/strong\u003e is the top-of-range VPF model for major airports, AWOS systems and national meteorological networks. It combines wide-range visibility measurement with integrated precipitation and temperature\/humidity sensing to provide a detailed description of current and recent weather from one instrument.\u003c\/p\u003e\u003cp\u003eForward-scatter optics measure MOR and EXCO from 10 m to 99.99 km, while a backscatter receiver improves precipitation classification. When used with its heated precipitation sensor and temperature input, the VPF-750 can also report freezing precipitation types.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMOR and EXCO measurement from 10 m to 99.99 km\u003c\/li\u003e\n\u003cli\u003eUp to 50 WMO Table 4680 codes\u003c\/li\u003e\n\u003cli\u003e45 METAR codes\u003c\/li\u003e\n\u003cli\u003eIntegrated precipitation sensing\u003c\/li\u003e\n\u003cli\u003eIntegrated temperature and humidity sensing\u003c\/li\u003e\n\u003cli\u003eRS232 or RS422\/RS485 communications\u003c\/li\u003e\n\u003cli\u003eOptional ALS-2 ambient light interface\u003c\/li\u003e\n\u003cli\u003eAutomatic contamination monitoring and compensation\u003c\/li\u003e\n\u003cli\u003eIP66 outdoor construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_VPF-750_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload VPF-750 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":46362530480279,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/Untitleddesign_56.png?v=1764928083"},{"product_id":"visibility-and-present-weather-sensor-sws-250","title":"Visibility and Present Weather Sensor SWS-250","description":"\u003cp\u003eThe \u003cstrong\u003eSWS-250 Visibility and Present Weather Sensor\u003c\/strong\u003e is the most capable model in the SWS range, combining forward-scatter visibility measurement with a dedicated backscatter channel for enhanced precipitation classification.\u003c\/p\u003e\u003cp\u003eIt measures MOR and EXCO over a default 10 m to 75 km range, with the maximum configurable to approximately 99 km. The sensor supports both WMO Table 4680 and METAR present and past weather reporting, making it well suited to aviation, AWOS\/RVR, national weather networks and transport applications.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMOR and EXCO visibility measurement\u003c\/li\u003e\n\u003cli\u003eDefault range 10 m to 75 km\u003c\/li\u003e\n\u003cli\u003eConfigurable maximum range up to approximately 99 km\u003c\/li\u003e\n\u003cli\u003eForward scatter plus dedicated backscatter channel\u003c\/li\u003e\n\u003cli\u003e42 WMO Table 4680 codes\u003c\/li\u003e\n\u003cli\u003e36 METAR codes\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 and RS485 interfaces\u003c\/li\u003e\n\u003cli\u003eOptional ALS-2 integration for RVR systems\u003c\/li\u003e\n\u003cli\u003eHeated optics and contamination monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/SWS-250-Datasheet-DOC101258.12B.pdf?v=1764929192\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload SWS-250 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":46362559217815,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/Untitleddesign_57_44dee4a2-f289-4d0f-91c6-004bb4935431.png?v=1764929251"},{"product_id":"sws-050-forward-scatter-visibility-sensor","title":"SWS-050 Forward Scatter Visibility Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eSWS-050\u003c\/strong\u003e is a compact forward-scatter visibility sensor for continuous meteorological and aviation monitoring. It measures Meteorological Optical Range (MOR) and extinction coefficient (EXCO) over a fixed 10 m to 40 km range.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVisibility range: 10 m to 40 km\u003c\/li\u003e\n\u003cli\u003eMOR and EXCO outputs\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 and RS485 interfaces\u003c\/li\u003e\n\u003cli\u003eHeated hood for harsh climates\u003c\/li\u003e\n\u003cli\u003eAutomatic contamination monitoring and self-test\u003c\/li\u003e\n\u003cli\u003eSuitable for RVR and AWOS applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_SWS-50_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload SWS-050 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857303605399,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/sws-050_183c7d78-5118-4c9f-ba93-f8e5c53804b5.jpg?v=1790174870"},{"product_id":"sws-100-visibility-present-weather-sensor","title":"SWS-100 Visibility \u0026 Present Weather Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eSWS-100\u003c\/strong\u003e combines forward-scatter visibility measurement with present-weather identification for demanding outdoor monitoring. The default visibility range starts at 10 m and can be configured up to 99 km.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfigurable visibility measurement from 10 m up to 99 km\u003c\/li\u003e\n\u003cli\u003eForward-scatter MOR measurement\u003c\/li\u003e\n\u003cli\u003ePresent-weather reporting using WMO codes\u003c\/li\u003e\n\u003cli\u003eIntegrated heating and self-diagnostics\u003c\/li\u003e\n\u003cli\u003eDesigned for aviation, road weather and environmental networks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_SWS-100_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload SWS-100 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857303638167,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/sws-100_e2c868d0-8857-4714-982c-91f0556c9493.jpg?v=1790174872"},{"product_id":"sws-200-visibility-present-weather-sensor","title":"SWS-200 Visibility \u0026 Present Weather Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eSWS-200\u003c\/strong\u003e is a forward-scatter visibility and present-weather sensor with an additional backscatter receiver to improve discrimination between liquid and frozen precipitation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDefault visibility range 10 m to 20 km\u003c\/li\u003e\n\u003cli\u003eUser-configurable maximum range up to 99 km\u003c\/li\u003e\n\u003cli\u003eMOR and EXCO measurement\u003c\/li\u003e\n\u003cli\u003eImproved rain and snow discrimination\u003c\/li\u003e\n\u003cli\u003eWMO present-weather reporting\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 and RS485 communication options\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_SWS-200_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload SWS-200 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857303670935,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/sws-200_c1b75009-baa8-42c9-a40e-8abaf267e51d.jpg?v=1790174874"},{"product_id":"vpf-710-forward-scatter-visibility-sensor","title":"VPF-710 Forward Scatter Visibility Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eVPF-710\u003c\/strong\u003e is a high-performance visibility sensor for demanding weather-monitoring sites including airports, offshore platforms and wind farms. Its open-head optical design allows representative measurement in precipitation, smoke, dust and spray.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVisibility measurement up to 99.99 km\u003c\/li\u003e\n\u003cli\u003eEXCO or MOR reporting\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 or RS485 outputs\u003c\/li\u003e\n\u003cli\u003eAutomatic contamination monitoring\u003c\/li\u003e\n\u003cli\u003eOptional ambient-light-sensor interface\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant outdoor construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.biral.com\/wp-content\/uploads\/2026\/03\/dsh_fam_VPF-710_en.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload VPF-710 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857303703703,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/vpf-710_0d2cb7fb-40be-44bd-84e6-ffb17adccc0c.jpg?v=1790174876"},{"product_id":"vpf-730-visibility-present-weather-sensor","title":"VPF-730 Visibility \u0026 Present Weather Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eVPF-730\u003c\/strong\u003e is a rugged visibility and present-weather sensor for offshore, heli-deck and aviation installations. Forward-scatter visibility measurement is combined with a backscatter receiver for improved precipitation classification.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMOR and EXCO range from 10 m to 99.99 km\u003c\/li\u003e\n\u003cli\u003e15 WMO Table 4680 present-weather codes\u003c\/li\u003e\n\u003cli\u003e17 METAR codes\u003c\/li\u003e\n\u003cli\u003eRS232 standard with RS422\/RS485 option\u003c\/li\u003e\n\u003cli\u003eAutomatic contamination monitoring\u003c\/li\u003e\n\u003cli\u003eOptional ALS-2 ambient-light interface\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_VPF-730_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload VPF-730 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857304031383,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/vpf-730_8f24a559-d879-4903-a1ba-e20caaa48ca0.png?v=1790174878"},{"product_id":"rws-20-road-weather-visibility-sensor","title":"RWS-20 Road Weather Visibility Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eRWS-20\u003c\/strong\u003e is a forward-scatter visibility sensor designed for road weather stations and fog-warning systems. It provides reliable MOR measurement with heated optics and contamination monitoring for continuous roadside operation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMOR measurement from 10 m to 7.5 km\u003c\/li\u003e\n\u003cli\u003e1 m or 10 m measurement resolution\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 and RS485 communications\u003c\/li\u003e\n\u003cli\u003e0 to 10 V output as standard\u003c\/li\u003e\n\u003cli\u003eOptional 4–20 mA and relay outputs\u003c\/li\u003e\n\u003cli\u003eHeated optics and contamination monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.biral.com\/wp-content\/uploads\/2026\/03\/dsh_fam_RWS-20_en.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload RWS-20 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857304129687,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/rws-20_f27e861b-71f2-4e06-8f6a-49aa0b473e4b.jpg?v=1790174881"},{"product_id":"rws-30-road-tunnel-visibility-sensor","title":"RWS-30 Road \u0026 Tunnel Visibility Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eRWS-30\u003c\/strong\u003e is a visibility sensor for road and tunnel applications where fog, pollution and smoke need to be detected reliably. It measures MOR and EXCO and provides both serial and analogue outputs for integration into tunnel safety and ventilation systems.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMOR range from 200 m to 99.99 km\u003c\/li\u003e\n\u003cli\u003eEXCO range from 0.03 to 15 km⁻¹\u003c\/li\u003e\n\u003cli\u003eRS232, RS422 and RS485\u003c\/li\u003e\n\u003cli\u003e0 to 10 V and 4–20 mA outputs\u003c\/li\u003e\n\u003cli\u003eOptional relay outputs\u003c\/li\u003e\n\u003cli\u003eAutomatic contamination correction and cleaning warnings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDatasheet\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/environmental.senseca.com\/wp-content\/uploads\/document\/dsh_fam_RWS-30_en_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eDownload RWS-30 Datasheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Biral","offers":[{"title":"Default Title","offer_id":50857304293527,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/0088\/0535\/files\/rws-30_17acae77-97d5-4848-9b45-236650355865.jpg?v=1790174883"}],"url":"https:\/\/pvl.co.uk\/collections\/visibility-present-weather.oembed","provider":"PVL","version":"1.0","type":"link"}