@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @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 semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:member . skos:related . skos:related . skos:narrower . skos:related . skos:narrower . skos:narrower . skos:related . skos:altLabel "Hach HQ40D" , "Hach HQ40D"@en ; skos:broader , ; skos:definition "A portable two channel multi meter with water quality field applications. Capable of measuring a variety of parameters (e.g. pH, conductivity, resistivity, total dissolved solids (TDS), optical dissolved oxygen (DO), biochemical oxygen demand (BOD), oxidation reduction potential (ORP), ammonia, ammonium, fluoride, chloride, sodium, temperature) by utilising a wide range of dedicated, interchangeable Hach INTELLICAL smart electrodes. Power can be provided by an AC adapter (optional), or batteries that permit field use. Allows the measurement and display of two parameters simultaneously, with memory for up to 500 readings."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL1481" ; skos:note "accepted"@en ; skos:prefLabel "Hach HQ40D - Multi 2 Channels Portable Two Channel Multi Meter"@en ; skos:related , . skos:narrower .