Purely H2O :: H2O Test Meters :: Calibtration Solutions :: E -Calibration fluid 342 PPM NOW ONLY $9.90!!!

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Purely H2O :: H2O Test Meters :: Calibtration Solutions :: E -Calibration fluid 342 PPM NOW ONLY $9.90!!!

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E -Calibration fluid 342 PPM NOW ONLY $9.90!!! #SKU16141

You Save 24%

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.The only way to know your TDS meter is giving an accurate reading is to calibrate it often. Foil packs are great but they need to be thrown away after each use. Our Solution measures a standard conductivity of 342 ppm and comes in a perfect Perfect Three ounce size!