Oakton AO-35634-35 PCTSTestr 50 Waterproof Pocket pH/Cond/TDS/Salinity Tester, Premium 50 Series, Black

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Overview Brand : Oakton Power Source : Battery Powered Style : Compact Color : Black Item Weight : 0.26 Grams About this item Battery: four aaa 1.5 v Buffer recognition: usa 4.01, 7.00, 10.01 and nist 4.01, 6.86, 9.18 Calibration: up to 3 points Conductivity accuracy: 1 percent full scale Display type: lcd Show more