See our wide range of Geotechnical and Structural sensors
The 4-20mA Piezometer is engineered to precisely measure pore water pressure in fully or partially saturated soil and rock. It is one of the more commonly deployed sensors in our piezometer range.
It utilises a diaphragm-type pressure transducer, delivering a robust 4-20mA output signal that is ideal for integration with data loggers and remote monitoring systems. It boasts an advanced and durable design, with 316-grade stainless steel and hermetic sealing protecting the technology from environmental effects. The casing itself is constructed to ensure that any stresses have no impact on readings. The 4-20mA is capable of measuring pressures from -50 kPa to 3500 kPa, accommodating a wide range of monitoring needs. Key specifications:
The Multi-Point Vibrating Wire Piezometer is a specialised instrument designed for measuring pore water pressure at multiple depths within a single borehole. This offers a more detailed understanding of subsurface water conditions.
A compact design simplifies the installation and monitoring process, reducing the need for multiple boreholes to provide a cost-effective solution.
Using vibrating wire technology, the Multi-Point converts pressure changes into frequency signals. Although each sensor is housed within the same casing, they operate independently to deliver accurate data with minimal interference. This includes independent conductors.Other features include:
Built for durability, it features robust stainless steel construction for reliable performance in most conditions. The device integrates seamlessly with data loggers for real-time monitoring and analysis, supporting proactive risk management and decision-making.
By providing detailed insights into groundwater conditions, the Multi-Point Vibrating Wire Piezometer is an essential tool for maintaining safety, stability, and compliance in geotechnical and environmental projects.
The SGP-3400 Strain Gauge Piezometer is a high-precision instrument designed for measuring pore water pressure and water level changes. It can also be utilised for dynamic monitoring activities.
The SGP-3400 consists of a strain gauge sensor housed within a robust stainless steel body. It also includes a porous filter tip. The device operates by converting liquid changes into electrical signals that are directly proportional to applied pressure. Data can be easily analysed with hand-held readout units. Alternatively, the sensor can be easily integrated into existed data logging systems. Key specifications of the SGP-3400 include:
The Standpipe Piezometer SGP-3400 Series is a straightforward solution for monitoring groundwater pressures in soil and rock formations.
Like other piezometers, it uses the Casagrande method, constructed with a low air entry element connected to standpipe tubing. The tubing is lowered into a pre-drilled borehole to manually measure groundwater levels using a dip meter. In cases of artesian pressure, a Bourdon pressure gauge can be attached to the top for accurate readings. Without the need for complex reporting equipment, data can be easily retrieved and quickly interpreted. The SGP-3400 Series is constructed with high-quality materials such as HDPE and PVC, ensuring lasting and reliable performance in Australia’s harshest environments. Other features of this Casagrande type piezometer include:
The VWP-3000 Series Vibrating Wire Piezometers are designed to provide measurements of pore water pressure across geotechnical and structural engineering applications.
These piezometers work by converting fluid pressures (exerted on a sensitive diaphragm) into a frequency signal. They collect reliable and accurate data suitable for monitoring groundwater elevations, pore pressures and fluid pressures.The series is built to withstand tough and demanding conditions, ideal for direct burial in fills, embankments and boreholes. Each model includes an internal thermistor and a 90V gas plasma arrester, acting as a safeguard against lightning strikes.
The VWP-3000 Series also features:
Models in the VWP-3000 Series:
The VWPHT-3600 Series of High-Temperature Vibrating Wire Piezometers are designed to measure pore water pressure in extreme conditions, including high-temperatures and other geotechnical environments.
This range utilises vibrating wire technology, converting pressure changes into frequency signals to provide accurate and stable measurements.
Constructed from robust, corrosion-resistant materials, the VWPHT-3600 Series is engineered to withstand temperatures up to 250°C. The sensor features a durable stainless steel body and a high-performance diaphragm, ensuring long-term performance and minimal signal drift over time.
Other features include:
The VWPHT-3600 Series is compatible with standard data loggers for real-time monitoring and efficient data integration. This data supports informed decision-making to create safer operations.
The VWPHT-3600 Series is a reliable solution for projects requiring high-precision monitoring in extreme temperature and pressure conditions, ensuring long-term stability and compliance with regulatory standards.
The VWT-9000 Series of Pressure Transducers are high-performance instruments designed to measure fluid pressure in a wide range of geotechnical and environmental applications.
Using advanced vibrating wire technology, they provided precise and reliable pressure readings by converting pressure changes into frequency signals.
The transducers feature a stainless steel body and a corrosion-resistant diaphragm. This robust design makes them ideal for harsh environments, including high-pressure and saturated conditions.
Other features of the range include:
The VWT-9000 range is compatible with standard data loggers and their compact designs simplify installation in confined spaces. The low maintenance requirements make the range an efficient choice for long-term projects.
With its ability to deliver accurate and stable measurements, the VWT-9000 Series of Pressure Transducers supports effective decision-making and risk management. It is a reliable and versatile tool for projects requiring precise pressure monitoring in challenging conditions.
The W1 Standpipe Piezometer is a reliable and cost-effective Casagrande type piezometer designed for monitoring in vertical boreholes. At Monitel, we have used it to measure groundwater levels and pore water pressures on sites across Western Australia.
The sensor is typically installed with the filter tip positioned at the chosen monitoring depth. For pressure data, the tip is surrounded by sand and enclosed with a bentonite seal to isolate the measurement area. Water level data can be gathered through a riser pipe or a Bourdon gauge (in artesian conditions). The W1 is suitable for various ground types and can be customised to match specific site requirements. It can be deployed with either a porous or ceramic tip and has a drive-in capacity for softer soils. The simplicity, versatility and reliability of the W1 Standpipe Piezometer make it an ideal choice for an accurate and consistent groundwater monitoring solution. Key Specifications:
The W16 Kompakt Piezometer is a vibrating wire piezometer designed for fast and accurate measurement of pore water pressures.
It utilises proven vibrating wire technology, where changes in wire tension correlate to changes in pore water pressure. Data is then sent to a read-out, terminal unit or data logger. The W16 boasts a compact design, making it ideal for confined installations. It is only 19mm in diameter and weighs just 150g (excluding the filter and cable). However, it is also robust and durable, with hermetic sealing promoting resistance to environmental factors. An over-voltage surge arrestor safeguards against electrical damage. The sensor tip includes an integral porous element, which houses the vibrating wire technology. Key Specifications:
The VWP-3400 Series Drive-In Piezometer is designed for efficient, direct measurement of pore water pressure in soil and rock.
Its unique design allows for direct installation using a high-strength drive cone, eliminating the need for boreholes and simplifying deployment in challenging or confined environments.
This makes it particularly suitable for rapid, cost-effective geotechnical monitoring.
Using vibrating wire technology, the piezometer converts pressure changes into frequency signals to provide accurate and stable measurements.
With a robust stainless steel body, the VWP-3400 is highly durable and performs reliably in saturated soils and high-pressure conditions. Other features include:
The piezometer is lightweight and compact which allows for straightforward installation. Its compatibility with industry-standard data loggers creates seamless integration into monitoring systems, supporting real-time data collection and analysis.
The VWP-3400 Series are practical and reliable solutions for geotechnical projects requiring quick installation and accurate long-term monitoring of pore water pressure. The data they retrieve supports informed decision making to ensure the safety and stability of your site.
