Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit & LLC-AI1109 8oz. pH Calibration Buffer Solution Kit

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About This Product 1: NOTe Product 1: Accuracy: 0.01 pH Product 1: High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, envir onmental monitoring, cooling towers, beverage, etc. Product 2: Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs). Product 2: Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment. Product 2: color-coded for quick identification. Product 2: Double-sealed. 2-year expiration from manufacture for an unopened bottle. Overview Brand : Apera Instruments Ph Range : 4.0-10.01 Recommended Uses For Product : Measuring pH levels in water solutions such as pools & spas, hydroponics, environmental monitoring, cooling towers, beverages Measuring pH levels in water solutions such as pools & spas, hydroponics, environmental monitoring, cooling towers, beverages Material : Glass Show more