Bluelab 2.77 EC Conductivity Solution 500ML hand soap then gently release them when

then gently release them when you toss them in the wash

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Bluelab 2.77 EC Conductivity Solution 500ML hand soap then gently release them whenProduct details Bluelab 2. 77EC Conductivity Solution 500 mL can improve the accuracy of your Bluelab meters. Using the reference solution, you can verify that your EC ppm meter is reading correctly after cleaning the probe. Bluelab's conductivity pens and meters are factory calibrated, so you don't have to recalibrate them, however, you do need to clean your probe and verify that it is reading accurately by using this 2. 77 EC Conductivity Standard