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Etekcity 0.1 pH High Accuracy Pocket Size pH Meter with ATC 0-14 pH Measurement Range,Handheld pH Pen Tester, Water Quality/Purity, for Aquariums, Swimming pools, Chemicals, for Home and Laboratory Use; Buffer Solutions and Carry Case Included
Go to see$16.98 -
Etekcity® Waterproof Digital PH Acidimeter Meter Tester 0 to 14.00 pH & Temperature Meter Gauge Thermometer 32 to 122 ℉(0 to 50 ℃) With LCD Display
Go to see$33.99 -
HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy
Go to see$19.95