TDS Meter

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  • Material: metal
  • Wide voltage operation: 3.3~5.5V
  • Output signal: 0~2.3V
  • Working current: 3~6mA
  • TDS measurement range: 0~1000ppm
  • Module interface: XH2.54-3P
  • Electrode interface: XH2.54-2P
  • Number of probes: 2
  • Overall length: (Approx)60cm
  • Connection interface: XH2.54-2P
  • Size: (Approx) 42*32mm


  • This equipment can be used for the measurement of general household water quality.
  • The TDS value can reflect the cleanliness of water and can be applied to water quality testing in the fields of domestic water and hydroponics.
  • In general, the higher the TDS value, the more lysate is contained in the water and the more unclean the water.
  • 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems.
  • The excitation source is an AC signal, effectively preventing probe polarization.
  • Waterproof probe for long-term immersion in water.
  • For Arduino compatible, easy to connect, plug and play, no soldering required


  • TDS probes cannot be used in water above 55 °C.
  • The TDS probe should not be placed too close to the edge of the container, as it will affect the display.
  • The head and lead of the TDS probe are waterproof and can be immersed in water,
  • but the connection interface and the signal adapter board are not waterproof. Please pay attention to use.