TEKCOPLUS PH Sensor, Electrode, Probe, PH Meter, Payer Meter, Measuring Instrument, Measuring Range 0-14, Accuracy ±0.01, Automatic Temperature Correction, 118.1 inches (300 cm) Cable, BNC Connector,

0-14 pH Electrode Probe, pH Meter with Replacement BNC Connector and 300cm Cable Sensor for ph Monitor Controller Tester Meter Kit Set for Aquarium Hydroponics Plant Pool Spa

2 in 1 Temperature pH Monitor Meter Tester Sensor test Kit 0~14.0 pH Automatic Buffer Recognition BNC electrode Probe for Hydroponics Aquarium Lab Testing Food Drinking Water pH of saltwater/seawater

Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each