The 227 estimates soil water potential from 0.1 to 10 bars. When the 227-L is wet, electrical resistance is low. As the 227-L dries, resistance increases. Calibration of individual probes is recommended for accurate soil water potential measurements. We recommend removing the probes during winter. Expected life is two freeze-thaw cycles.

Features

• Uses electrical resistance method for soil water matric potential measurement
• Measurement range: -1000 kPa to -10 kPa
• Contains in-line blocking capacitors for applications when multiplexers are not used
• Manufactured by Delmhorst

Specifications

• Material: Gypsum
• Electrode Configuration: Concentric cylinders
  • Center Electrode: Excitation
  • Outer Electrode: Ground
• Calibration: Individual calibrations are required for accurate measurements; refer to manual for more information.

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