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Amazon.com : bluelab pH Pen-Digital pH Tester - Reliable & Accurate for High Yield Crops - Hand-Held Meter - Measures pH & Temperature in Solutions and Soil Solutions - Optimize Plant Health
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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 Greece.
![Bluelab PENPH pH Pen, Ultimate Handy Solution for Measuring pH and Temperature: Amazon.com: Industrial & Scientific Bluelab PENPH pH Pen, Ultimate Handy Solution for Measuring pH and Temperature: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51LEqeRCuXL._AC_UF1000,1000_QL80_.jpg)
Bluelab PENPH pH Pen, Ultimate Handy Solution for Measuring pH and Temperature: Amazon.com: Industrial & Scientific
![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 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](https://preview.redd.it/lpd5o6y2bhl61.jpg?width=640&crop=smart&auto=webp&s=6ac9156dd91a7039a372ac5f81c8f118b4f17ad7)