Wholesale Vibrating Wire Piezometer – High-Precision Pore Water Pressure Sensor for Geotechnical and Groundwater Monitoring Manufacturer and Supplier

Vibrating Wire Piezometer – High-Precision Pore Water Pressure Sensor for Geotechnical and Groundwater Monitoring

The FS-ZXSY-001 vibrating wire piezometer is designed for long-term installation in hydraulic structures, concrete structures, soil structures, or within soil masses to measure seepage (pore) water pressure, while simultaneously measuring the temperature at the installation point.

With optional accessories, it can be used in piezometer tubes and foundation boreholes. The instrument features a fully stainless-steel structure with a compact size of 24 × 120 mm, allowing easy installation in confined spaces. It also includes parameter identification functionality.

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1.Technical Specifications

Item		Description
Model		120 - 0.35	120 - 0.7	120 - 1	120 -2	120 -3
Performance Specifications	Maximum Outer Diameter D/mm	24	24	24	24	24
	Length L/mm	128	128	128	128	128
	Measuring Range kpa	0 ~350	0~700	0~1000	0~2000	0~3000
	Resolution	≤0.025%F. S
	Fitting Accuracy	≈0.1%F.S/0.5%F.S
	Temperature Measurement Range	-40~+80℃
	Sensitivity	±0.1℃
	Temperature Accuracy	土0.5℃
	Correction Coefficient b	≈0.10KPa/°C
	Water Pressure Resistance	Measurement Range: 1.2 × full scale
	Insulation Resistance	≥50 MΩ

2.Product Features

High-Precision Pore Water Pressure Measurement

The Vibrating Wire Piezometer adopts advanced vibrating wire sensing technology to accurately measure pore water pressure and groundwater pressure changes, providing reliable monitoring data for geotechnical and hydraulic engineering projects.

Excellent Long-Term Stability

Designed for long-term field installation, the sensor offers excellent signal stability, low drift performance, and reliable operation under demanding environmental conditions.

Strong Resistance to Harsh Environments

With a robust structure and corrosion-resistant materials, the piezometer can operate effectively in high-pressure, high-moisture, and complex underground environments.

High Sensitivity & Fast Response

The device provides sensitive detection of pressure variations, enabling timely identification of changes in soil, rock, and hydraulic structures.

Long-Distance Signal Transmission Capability

Supports long cable transmission with strong anti-interference performance, making it suitable for large-scale monitoring systems and remote measurement applications.

Easy Integration with Monitoring Systems

Compatible with data loggers, automatic monitoring systems, and telemetry platforms to achieve centralized data collection, remote monitoring, and intelligent analysis.

3.Product Uses

Measure pore water pressure and groundwater level changes.
Monitor seepage conditions in dams, embankments, and foundations.
Evaluate the stability and safety of geotechnical structures.
Provide continuous monitoring data for engineering analysis and risk assessment.
Detect abnormal pressure changes and support early warning systems.
Integrate with automated monitoring networks for long-term unattended operation.

4.Product Applications

Dam Safety Monitoring

Used for monitoring seepage pressure, foundation conditions, and internal water pressure changes in concrete dams, earth dams, and reservoirs to ensure structural safety.

Slope & Landslide Monitoring

Applied in slopes, retaining structures, and landslide-prone areas to evaluate groundwater pressure variations and improve geological disaster prevention.