Hamilton Company

Hamilton Company, founded over 70 years ago by Clark Hamilton, is a global manufacturer of precision analytical instruments headquartered in Reno, Nevada. While widely known for automated liquid handling platforms and precision syringes in the life sciences market, their process analytics division produces a comprehensive line of in-line sensors directly relevant to water treatment and environmental monitoring. The pH and ORP sensor portfolio includes polymer-filled probes designed specifically for water treatment applications, pre-pressurized probes for hygienic installations, and refillable probes for harsh industrial environments. The VisiWater optical dissolved oxygen sensor targets environmental water monitoring with fluorescence quenching technology that eliminates membrane replacement and electrolyte handling, while the Oxysens polarographic DO sensor addresses wastewater treatment and aquaculture applications. On the conductivity side, the Conducell UPW sensor measures ultrapure water conductivity (0.01–1500 µS/cm) compliant with USP 645, EP, and JP standards, and the Conducell 4UxF four-pole sensor covers broader process conductivity ranges. All Hamilton process sensors incorporate Arc intelligent sensor technology, enabling direct digital communication without external transmitters, wireless calibration via the ArcAir app, and predictive diagnostics. Additional product lines include Microlab STAR, NIMBUS, VANTAGE, and Prep automated liquid handling systems, 700 Series precision syringes, and HPLC columns.