HI 2211 pH and ORP Benchtop Meter
How to use and calibrate the Hanna Instruments HI 2211 pH and ORP Benchtop Meter. This high quality, easy to use meter can be used to test pH and oxidation reduction potential (ORP). Features a reading stability indicator used during calibration and a measurement memory/memory recall function. For more information, visit http://goo.gl/YQIpT
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