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Fison Coulometric Karl Fischer Titrator delivers precise water content determination from 1 ppm to 100%, covering petroleum products, lubricating oils, and additives via Karl Fischer coulometric titration. Its twin platinum electrode endpoint detection, 40 μg H₂O/s maximum electrolysis speed, and 0.1 μg display resolution support accurate, repeatable moisture readings down to trace levels. Automatic drift compensation and automatic open/short-circuit electrode fault detection reduce manual recalibration and measurement errors across routine sample batches. Manufactured for medium- to high-volume petroleum, petrochemical, and pharmaceutical testing labs, the coulometric titrator is built to ASTM D1533 and ASTM D6304 standards, pairing an integral high-speed thermal printer with 255-point time-stamped data storage and multi-language reporting for laboratory quality-control use.