Bluetooth Professional OBD2 Diagnose OBD2 Modul Scanner Scan-Tool. PH Resolution is 0.01pH, Accuracy ± 0.05pH.TDS: 0 ~ 9990ppm, Conductivity: 0 ~ 9990us / cm, Accuracy: ± 2%. [LCD Display]: The LCD clearly displays the data and the LCD backlight turns off automatically.
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