Electronic monitor for precise measurement of dissolved oxygenFast and accurate way to measure dissolved oxygen in aquariumsMonitor dissolved oxygen level for healthy aquarium inhabitantsThis monitor makes measuring dissolved oxygen easy. Accurately reads dissolved oxygen levels from 0 - 20 ppm. The versatile Pinpoint II Oxygen Monitor displays a digital readout for dissolved oxygen in either percent oxygen or ppm saturation. This affordable and accurate dissolved oxygen monitoring system is the preferred monitor in the aquaculture industry. Includes probe with 5 ft cord, extra replacement membranes and probe electrolyte. No calibration fluid needed. Operates for about 150 hrs. Runs on a 9V battery (not included).Electrodes, adapter kit, and calibration packets also available.Please click on "More Information" for directions for use.

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