@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "Vaisala Present Weather and Visibility sensors (PWD10, PWD12, PWD20 and PWD22) are compact and light-weight probes that provide accurate measurements of prevailing visibility. PWD10 and PWD12 models measure visibility in a range of 10m-2,000m while PWD20 and PWD22 are able to measure visibility up to 20,000m. Moreover, PWD12 and PWD22 models are able to indicate the cause of prevailed visibility and detect precipitation type and rain accumulation while PWD10 and PWD20 can not measure these parameters"@en ; sdo:inDefinedTermSet ; sdo:name "Vaisala Present Weather Detector PWD series"@en ; sdo:termCode "SDN:L22::TOOL1003" .