Apera Instruments PH910 Benchtop Lab pH Meter Kit with LabSen 211 Refillable Glass pH Electrode $449.90 View Details
Ph Meter Water Tester, iPstyle Digital Water Quality Tester Perfect for Hydroponics, Pools, Koi Ponds, Drinking Water $8.99 View Details
HM Digital TDS-4 Pocket Size TDS Tester Meter with 0-9990 ppm Measurement Range , 1 ppm Resolution, +/- 2% Readout Accuracy $25.99 View Details
Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified $14.99 View Details
SMART SENSOR Digital Tester,Tester Water Quality Meter Portable DO Portable DO Tester Dissolved Meter Portable DO Tester Water Tester Dissolved Water Quality Tester Dissolved Dissolved Meter Analyzer $189.78 View Details
