Dissolved oxygen pen offers excellent accuracy

Don Horne   

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vissers 0816The Ultrapen PT5 Dissolved Oxygen pen from Vissers Sales is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Features include real time readings, highly stable microprocessor based circuitry with an accuracy of up to ± 2% and a temperature compensation algorithm that dynamically corrects for changes in membrane temperature during measurements. Also included is an adjustment for altitude and sample salinity. Calibration methods include air, water and 0 ppm DO. It’s easy to use with one button control. Replacement membranes are preinstalled in easy to apply caps. It includes a rugged design with an aluminum body and is powered by an N-Type battery.

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