WATER POTENTIAL SENSORS

Measurements: Soil Water Potential

Applications: Plant Water Stress

Water potential describes the force that drives water movement. It is the most fundamental and essential measurement in soil physics.

Unfortunately, it's also a tricky thing to measure. The chart in the "comparisons" tab shows range and accuracy for available instruments and sensors. Find more information about each instruments' advantages and limitations on the individual product pages listed below.

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MPS-6 Calibrated Water Potential Sensor

  • Water potential range -9 to -100,000 kPa
  • Accuracy (10% + 2 kPa)
  • No refilling or field maintenance necessary
  • Plug and play with Decagon data loggers, digital output SDI-12 for non-Decagon data loggers

T4 Field Tensiometer

  • Water potential range +100 to -85 kPa
  • Highly accurate ( +/- 0.5 kPa)
  • External refilling makes this a suitable sensor for continuous field measurements.
  • Analog (voltage) output

T5 Laboratory Tensiometer

  • Water potential range 0 to -85 kPa (extended range up to -250 kPa with T5x)
  • Highly accurate ( +/- 0.5 kPa)
  • Best suited for laboratory or spot measurements of water potential..
  • Analog (voltage) output

T8 External Refilling Field Tensiometer

  • Water potential range +100 to -85 kPa w/ temperature measurement
  • Highly accurate ( +/- 0.5 kPa)
  • External refilling makes this a suitable sensor for continuous field measurements.
  • Digital output SDI-12 and RS-485

TS1 Smart Tensiometer

  • Water potential range +100 to -85 kPa w/ temperature measurement
  • Highly accurate ( +/- 0.5 kPa)
  • Automated refilling for low maintenance
  • Digital output SDI-12 and RS-485