Thermo Scientific Orion Versa Star pH/Conductivity/Temperature Benchtop Multiparameter Meter Kit: Science Lab Multiparameter Meters: Amazon.com: Industrial & Scientific
Thermo Scientific Orion ROSS Ultra Triode Combination Electrode, 0 to 14 pH: Science Lab Electrochemistry Accessories: Amazon.com: Industrial & Scientific
Thermo Scientific Orion Epoxy Body KNIpHE pH Electrode, with Waterproof BNC Connection, 0 to 14 pH: Science Lab Electrochemistry Accessories: Amazon.com: Industrial & Scientific
Thermo Scientific Orion Ammonia Standard Solution, 1000Polypropylenem as Nitrogen (N), 475mL: Lab Chemicals: Amazon.com: Industrial & Scientific
Thermo Scientific Orion Epoxy Body ROSS Combination pH Electrode, with Screw Cap Connector, 0 to 14 pH, 3 M KCl: Science Lab Electrochemistry Accessories: Amazon.com: Industrial & Scientific