Smart Vibrating Wire Piezometer

Kingmach’s smart vibrating wire piezometer converts pore water pressure into a frequency signal inside a rugged stainless steel body, then digitizes the data locally to avoid electrical noise on long cable runs. The sensor uses a proven vibrating wire element whose tension changes with water pressure, a technique known for negligible zero drift even after years in saturated ground. Temperature compensation is handled by an integral thermistor, so density corrections can be applied automatically in monitoring software. Output options include RS-485 and SDI-12, enabling direct connection to remote telemetry units without extra interface modules. This makes the instrument well-suited for automated monitoring at dams, landslide zones, deep excavations, and groundwater basins where regular manual readings aren’t feasible. The housing is typically machined from stainless steel with a sintered filter tip to keep silt out, and the cable entry is sealed against high pore pressure. Kingmach supports customization for unusual depth ranges, multiple piezometer strings, or non-standard thread sizes. Since we produce a wide range of geotechnical sensors in-house, the piezometer can be bundled with dataloggers, solar power kits, and cloud-based dashboards as a turnkey package. Training and after-sales support are available through local distributors, which helps reduce the learning curve for teams new to automated pore pressure monitoring. Whether you’re instrumenting a tailings dam or keeping an eye on a metro station’s dewatering system, the goal is always a clear, low-maintenance data stream that feeds directly into your stability analysis.