Apera's unique platinum-coated sensor with automatic temperature compensation (32 to 140F) ensures accuracy and precision Designed for aquariums, fish farms, and environmental monitoring Single-button operation. Calibration is only needed once every month Standardized against the normal standard seawater (s = 35), accurately calibrated in conductivity ratio (K15) and in salinity International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
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