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Buy Bluelab PENGTB Grower's Toolbox with pH Pen, Conductivity Tester and Probe Care Kit, Easy Calibration, Digital Meters for Hydroponic System and Indoor Plant Grow Online at Lowest Price in Ubuy Nepal.
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Is this how a NEW Bluelab pH pen is supposed to arrive? This is the replacement for the first one i bought that looks the same : r/Hydroponics