Soil Water Potential Sensor RS485 Modbus Output

Captures soil water potential in kPa rather than volumetric moisture percentage, directly reflecting how easily plant roots can extract water from soil at any given moisture level.

Ceramic construction resists chemical and biological degradation over time, eliminating the material-induced signal drift common in polymer-based tensiometers during long-term buried deployment.

No factory or field calibration is required. Sensor is ready for use immediately after installation, removing the need for reference solutions, calibration curves, or soil-type-specific adjustments.

Sensing element reaches energy equilibrium with surrounding soil moisture, then measures resulting pressure or tension change directly, delivering fast response and high measurement accuracy.

Measurement range spans from near-saturation at -5kPa to severe drought at -100kPa, covering the full spectrum from optimal plant growth conditions to critical water stress thresholds.

Sub-kPa resolution enables detection of subtle soil water potential changes between field capacity and wilting point, supporting precise irrigation trigger decisions in precision agriculture applicati

Encapsulated with potting compound and rated IP68, the housing withstands continuous soil moisture, acid, alkali, and salt exposure during long-term buried installation at depths of 30cm or more.

Built-in anti-interference design maintains stable readings in saline soils and under fluctuating temperature and humidity conditions where simpler sensors lose accuracy or require frequent compensati

Draws only 0.25W at 12VDC across a 5 to 30VDC wide-voltage range, enabling solar or battery-powered deployment in remote farmlands, orchards, and ecological research sites.

Default 2m cable is customizable to any required length on order, enabling flexible routing from deep installation points to surface-mounted data loggers without on-site cable splicing.