TDS Pens

Xiaomi

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...

Miscellaneous

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:...