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Amazon.com: High Accuracy pH Electrode with Calibration Powder, 0-14 pH Probe with BNC Connector & 300cm Cable for Wide Application : Patio, Lawn & Garden
Amazon.com: Liquid PH Value Detection detect Sensor Module Monitoring Control for Arduino BNC Electrode Probe : Industrial & Scientific
Amazon.com: Extech 601500 Standard pH Electrode : Industrial & Scientific
Gain Express Soil Ph & Moisture Meter 295mm Long Electrode
Amazon.com: Extech 60120B Mini pH Electrode (10 by 120 mm) : Industrial & Scientific
0-14 PH Analytical Surver Electrode PH Probe BNC Plug Connector for Aquarium PH Meter Controller Gib Digital PH Sensor Electrode: Amazon.com: Industrial & Scientific
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RCYAGO pH Meter with Ph Electrode and Batteries, pH Tester for Water Milk Cheese Soil Food: Amazon.com: Industrial & Scientific
Amazon.com: GAOHOU PH0-14 Value Detect Sensor Module + PH Electrode Probe BNC For Arduino : Industrial & Scientific
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Amazon.com: Extech 601100 Flat Surface Electrode 15 by 106mm : Industrial & Scientific
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Amazon.com: 2 in 1 Temperature pH Monitor Meter Tester Sensor Test Kit 0~14 pH Automatic Calibration BNC Electrode Probe for Hydroponics Aquarium Lab Testing Food Drinking Water pH of Saltwater/seawater : Industrial
Hanna Instruments HI73127 Polypropylene Spare Electrode with Pin Connection, 0 to 14 pH: Amazon.com: Industrial & Scientific
Replacement pH Electrode Long Cable 0-14pH Probe Test Water Liquid Ocean Sea Water Acid Rain with Glass Bulb (200cm ph Electrode): Amazon.com: Industrial & Scientific
PH Electrode Tester, Sturdy Durable Professional Manufacturing PH Electrode for Water Quality Testing: Amazon.com: Industrial & Scientific
0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa (pH Electrode): Amazon.com: Industrial & Scientific
