A valuable tool in regulatory monitoring, process water testing, and environmental water analysis in the field or laboratory, this meter provides drift-free, accurate readings. Also called a nephelometer, it measures the amount of light scattered at right angles from a beam of light passing through the test sample. Uses a tungsten filament lamp as a light source. Accepted by the EPA for compliance with NPDWR and NPDES monitoring programs as specified by USEPA method 180.1. Supplied with four optically selected sample vials with screw caps, standardization package consisting of 0.0, 1.0, and 10.0 NTU standards, instruction manual, Lithium ion rechargeable battery, wall charger, and carrying case.
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The we model uses a tungsten light and complies with USEPA method 180.1. The wi model uses a LED light and complies with the specifications of ISO 7027.