Most fundamental and essential measurement in soil physics
The MPS-6 is a matrix water potential sensor that provides long term, maintenance-free soil water potential and temperature readings at any depth without sensitivity to salts. The range of the MPS-6 goes from field capacity to air dry. Lab and field tests indicate that it can make accurate measurements at water potentials at least as dry as permanent wilting point.
Dramatically Improved Accuracy
Accuracy (±10% of the reading) comes from the MPS-6's six point factory calibration. Compare with confidence to other MPS-6 sensors or to other measures of water potential.
Tough, Long-Lasting Body
Epoxy overmolding will withstand even difficult field conditions. Sensors are rated for long-term research studies.
Other matrix potential sensors have a tendency to degrade over time. The MPS-6 uses a silica based ceramic material that doesn't degrade and doesn't need replacement or recalibration.
Insensitivity to Salts
The sensor is accurate in salty environments, a variety of soils, and even in locations where the salinity conditions change over time.
Breakthrough calibration technique gives the MPS-6 the accuracy of an individually calibrated sensor at a price comparable to most uncalibrated sensors.
The MPS-6 has sensitivity from -9 kPa all the way to air dry (-100,000 kPa), with accurate measruements to at least permanent wilting point.
Onboard Temperature Measurement
Temperature measurements let you evaluate another important growing condition without adding a sensor.