Apera Instruments⏳pH MetersApera Instruments SX610 pH Meter, Pen Tester, Waterproof , ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor$148.99View
Apera Instruments⏳pH MetersApera Instruments PH60S Premium pH Meter for Food, Pocket Tester, Replaceable Spear Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range$542.99View
Apera Instruments⏳pH MetersApera Instruments ORP60 Premium ORP Meter, Pocket Tester, Replaceable Electrode, ±1mV/±0.2% Accuracy, ±1000 mV Range, ±0.5°C Temperature Sensor$224.99View
Apera Instruments⏳pH MetersApera Instruments PH20 Value pH Meter, Pocket Tester, Waterproof, ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor, Complete kit$161.99View
OCS.tec⏳pH MetersOCS.tec PH & TEMPERATURE CONTROLLER METER TESTER WATERPROOF ELECTRODE AQUARIUM KOI P14$406.99View
Bluelab⏳pH MetersBluelab CAREKITPH pH Probe Care Kit with Calibration Solution, Storage Solution, and Brush$68.99View
Bluelab✓pH MetersBluelab CAREKITPH Conductivity Probe Care Kit with Calibration Solution and Cleaning Tools$59.99View
HM Digital⏳pH MetersHM Digital AquaPro Handheld Water Total Dissolved Solids Tester - HM-DIGITAL-AP-1$60.99View
Hanna Instruments⏳pH MetersPH METER, 2PH - 16PH, 0.1PH, +/-0.1PH HI-98127 By HANNA INSTRUMENTS$435.99View
Bluelab✓pH MetersBluelab PENPH pH Pen Fully Waterproof Pocket Tester, Easy Calibration, Double Junction Probe for Improved Accuracy and Durability, White$222.99View
Bluelab⏳pH MetersBluelab PROBPH pH Probe, Replacement Probe with BNC Fitting, Easy Calibration$217.99View
Extech⏳pH MetersExtech PH115 ExStik Replacement Refillable pH Electrode Module for Extech PH100/PH110 Meter$176.99View
