Soil water potential meter

Soil water potential meter (also known as soil vacuum meter or soil water tension meter) is an instrument used to directly measure soil water potential (matrix potential) by monitoring the soil's suction force on water to reflect the availability of water for plant roots. It consists of a clay head, vacuum gauge/sensor, water storage tube, etc., and uses the principle of negative pressure to measure soil water tension. It is suitable for applications in agricultural irrigation, soil research, environmental monitoring, and other fields.

Applications include:
1. Agricultural irrigation management: guiding precise irrigation and optimizing crop water use efficiency.
2. Horticulture and greenhouse cultivation: monitoring the moisture content of potted plants and soil-less cultivation media.
3. Ecological and hydrological research: analyzing soil moisture movement patterns and plant water uptake characteristics.
4. Geological disaster monitoring: assessing soil stability in slopes, embankments, and other areas.
5. Laboratory and field investigations: used for studying soil physical properties.

• Direct measurement: Accurately reflects soil potential, providing intuitive and reliable data.

• Quick response: The high permeability of the clay head enables dynamic response to changes in soil moisture.

• Wide measurement range: Typical range 0~-100 kPa (optional -85 kPa or higher).

• Durable design: Corrosion-resistant clay head and weather-resistant materials, suitable for long-term burial.

• Low maintenance: Water-injection design, simple operation, and easy maintenance.

• High compatibility: Compatible with mechanical gauges or electronic sensors, supporting data logging.

• Cost-effective: Low cost, suitable for large-scale monitoring networks.