TDS Pens

  • Mi TDS Pen


    Mi TDS Pen

    The Xiaomi Mi TDS Pen is perfect for testing RO water when re-mineralising to the right TDS or even just checking a tanks TDS level to determine whether you require adjustment. Includes: TDS Pen Batteries Instructions: Click...

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  • TDS Pen


    TDS Pen

    High quality TDS Pen, perfect for use when remineralising RO/DI water. Specifications:Hold function: Saves measurements for convenient reading and recordingAuto-off function: Turns off meter after 10 minutes of non-use to conserve batteriesDual Range:...

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