Leuchtsteine Leuchtkiesel Solarsteine Nachtleuchtend Garten Dekor DHL. PH Resolution is 0.01pH, Accuracy ± 0.05pH.TDS: 0 ~ 9990ppm, Conductivity: 0 ~ 9990us / cm, Accuracy: ± 2%. Dump the item about 4 seconds in the liquid to get accurate values.
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