PH Meters
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THERMO STARA2216Orion Star A221 pH Portable Meter Kit with General Purpose Gel pH/ATC Electrode, Solutions, Meter Armor and Field Case
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THERMO STARA2114Orion Star™ A211 pH Benchtop Meter Kit with ROSS Sure-Flow pH Electrode, ATC Probe, Solutions and Stand
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THERMO STARA2215Orion Star A221 pH Portable Meter Kit with ROSS Ultra Triode Low Maintenance Gel pH/ATC Electrode, Solutions, Meter Armor and Field Case