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Decagon MPS-6 Water Potential Sensor

I have a couple of these.

It seems Decagon was bought and the product renamed to TEROS 21.



  • Shield / Bare: Ground
  • White: Power, 3.6V to 15V
  • Red: Signal

Serial Protocol

  • Serial (UART) or SDI-12.
  • 1200 baud, 8N1.
  • 0 - 3.6V levels, active low
  • Sends a reading automatically ~40mS after power applied.

Data format: <water potential in kilopascals> <temperature in C>\r

decagon-mps-6.txt · Last modified: 2024/04/26 23:25 by river

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