
Vibrating Wire Strain Gauges for Bridge, Tunnel & Dam Monitoring: Complete Selection Guide
The global construction industry is experiencing a massive surge in large-scale infrastr...

Professional Settlement Sensors by Kingmach
Monitoring settlement is a routine but critical task on construction sites, dams, and tunnels. Even small ground shifts can lead to structural stress or failure if undetected. Kingmach has been supplying settlement sensors for these scenarios for years. We offer a range of sensor types—vibrating wire, hydrostatic level, and MEMS-based—to suit different accuracy needs and site conditions. Rather than pushing a one-size-fits-all product, we often discuss with engineers to match the right instrument to the project. Many of our sensors end up in long-term monitoring arrays where reliability over seasons matters more than flashy specs. Our production line keeps a stock of common models, but about a third of orders involve some customization, from cable length to output protocol. The goal is always the same: get clean, repeatable data without instrument drift causing false alarms.
Technical Detail
Kingmach settlement sensors are built for real-world conditions. The bodies are stainless steel, with O-ring seals that hold up in wet boreholes or inside concrete. Output options include 4-20mA, RS485, and frequency signals, so they plug into existing data loggers without extra converters. For differential settlement across a dam crest or tunnel invert, our hydrostatic level systems connect multiple pots to a reference reservoir, and the average field accuracy settles around ±0.2 mm. That is not a lab number—it is what engineers see once thermal effects are compensated. Single-point vibrating wire sensors offer similar precision and are easier to install when you only need a few points. All sensors go through a temperature calibration cycle before shipping. We include the calibration sheet with each sensor. Customization is a big part of our work. If a project needs a non-standard range or a specific connector, we handle it without treating it as a one-off emergency. Our support team can also troubleshoot data issues remotely or recommend installation techniques that reduce noise. Distribution is handled through a network of regional partners, so lead times and local service vary by region. But in most cases, standard sensors ship within two weeks. For larger orders, we coordinate to align with project schedules.
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Products

Inductive Frequency-Modulated Hydrostatic Level SensorJMDL-62XXAT、ADT
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Micro Range Hydrostatic Level Sensor JMQJ-62XXADT
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Magnetic Ring Settlement Water Level Gauge JMCJ-1003、1005
View DetailsFAQ
We make vibrating wire, hydrostatic level, and MEMS sensors. Vibrating wire suits single-point monitoring, hydrostatic level is for differential settlement over an area, and MEMS is compact for tight spaces.
Yes. About one-third of our orders include custom cable lengths, connectors, or output modifications. Just send us your requirements.
Field accuracy depends on installation and temperature, but our hydrostatic systems typically hold around ±0.2 mm when properly installed. Our vibrating wire models achieve similar performance.
We offer technical documentation and remote guidance. For complex sites, we can connect you with certified installation engineers through our network.
Share your product type, target capacity, and application requirements. Our team can review the details and recommend a practical next step.
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Mail: [email protected]
Contact Us: +8613808434127
Address: No. 188 Tongzipo West Rd, Changsha, Hunan, China