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Blue lab conductivity pen - $40 (SE)

For sale....a new, never used Bluelab Conductivity Pen. For testing EC and temperature. Display options in Celsius, Fahrenheit, EC, CF, ppm 500 and ppm 700. Includes 2 new, sealed calibration verification fluids. Sells on Amazon for 88 dollars. I want 40 dollars.
hydroponics, gardening

post id: 7744323467

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