Rosemount 3965462 TUpH pH Sensor with SILCORE Technology, Insertion/Submersion pH Sensor for Abrasive Applications: Amazon.com: Industrial & Scientific
Amazon.com: PH Probe BNC,PH Sensor Probe PH Electrode Probe Digital PH Meter BNC Connector Adapter for Measuring the PH for Most PH Meter and Controller with BNC Connector for Aquariums,Hydroponics,Laboratory : Industrial
Amazon.com: FOMOOUR PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, PH Meter for Water/Brewing/Food/Soil/Sauce/Laboratory, TDS Meter, PH Pen : Industrial & Scientific
Teyleten Robot PH Value Data Detection and Acquisition Sensor Module Acidity and Alkalinity Sensor Monitoring and Control ph0-14 for Arduino: Amazon.com: Industrial & Scientific
Analog pH Meter Pro V2 Professional pH Sensor Compatible with Arduino and Raspberry Pi: Amazon.com: Industrial & Scientific
Water PH Meter 0-14 Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa (300cm pH Probe Electrode): Amazon.com: Industrial & Scientific
YSI 6903 ProDSS pH Sensor with Module Each: Amazon.com: Tools & Home Improvement
Apera Instruments LabSen 803 Glass-Body pH Electrode for Purified Water and Low Ion-Concentration Samples, with Built-in Temperature Sensor, The Replacement Probe for SX811-PW: Amazon.com: Industrial & Scientific