Comprehensive, compliance focused systems for Australian Business
Make borehole and tailings assessments simpler and more reliable with our piezometer range.
Supporting Australian industry with robust piezometer sensors
From tailings dams to boreholes, Western Australian industry relies on effective and reliable pore pressure monitoring. Monitel offers full-service piezometer solutions that help engineers, managers and operators detect risks early, safeguard structural integrity and meet regulatory requirements.
Our systems are expertly designed to provide the precise, site-specific pressure data you need to support complex planning and risk assessments. Backed by actionable, compliant results our partners move forward with confidence.
Compliance
Accuracy
Durability
Designing reliable, tailored monitoring solutions for long-term performance
End-to-End Services
Monitel believes in a holistic approach to monitoring.Our team will support you from the start, designing an extensive system with proper piezometer selection. Then, we oversee a smooth installation process and integrate data with automated reporting systems.
To support you post-installation, we offer ongoing monitoring that assists audits, inspections and internal reviews.
Solutions Tailored to Each Project
Every site is different – and every monitoring system should be too. We select a piezometer based on the needs of your project, offering custom cable lengths to suit.
Monitel prides itself on a technology and product agnostic approach. We have no allegiance to any one brand or sensor and will always choose the best product for you
Sensors Built for Australia
In the harsh climates of Australia’s regions, it’s not uncommon for monitoring equipment to fail you.
That’s why every Monitel piezometer is assembled and tested in WA, ensuring that it can perform in unforgiving environments.
Where a piezometer helps
Tailings Dam Monitoring
Piezometers detect excess pore pressure, seepage or changes in water content that indicate instability in tailings infrastructure.
This monitoring is crucial for compliance and long-term asset integrity for WA’s resources industry.
Borehole Monitoring
We often use our sensors to track groundwater levels and pore pressure changes in boreholes.
For engineering and environmental management consultants, this data supports environmental assessments, dewatering and site stability analyses.
Tunnel Monitoring
To support tunnel integrity for civil infrastructure and resources projects, our team monitor structural movement, water ingress and other environmental conditions
Each of these can have a significant impact on tunnel stability and compliance on your site.
Find the piezometer that works for you
W1 Standpipe Piezometer
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:
- Available in various lengths up to 3m
- 43mm diameter
- PVC or galvanised steel riser pipe options
- Permeability of 3 x 10-4 m/s
4-20mA Piezometer
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:
- 100, 200, 350, 700, 2000 and 3500 kPa pressure ranges
- Constructed with 316-grade stainless steel
- Inbuilt thermistor to monitor temperature changes
- Operating temperature range of -20 to +80°C
- 19mm diameter
W16 Kompakt Piezometer
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:
- 350, 500, 700, and 1000 kPa pressure ranges
- ±0.25% accuracy
- Temperature range of -10°C to +60°C, with inbuilt temperature compensation
- Stainless steel or PVC options
VWP-3000 VW piezometers
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:
- Various filter options, including low air entry and high air entry
- A resolution of 0.025% FS and an accuracy of ±0.1% FS
- Signal frequencies capable of long-distance transmission, meaning that the sensors are insensitive to long cable lengths
Models in the VWP-3000 Series:
- VWP-3000 (Standard)
- VWP-3310 (Standard Vented)
- VWP-3100 (Heavy Duty)
- VWP-3200 (Low Pressure)
- VWP-3300 (Low Pressure Vented)
- VWP-3400 (Drive-In)
- VWP-3401 (Drive-In)
WP-3400 & SGP-3500 Drive in Piezometers
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:
- Pressure range of 100 kPa to 3.5 MPa
- Temperature range of -20 to +80°C
- Accuracy of <0.1% FS
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.
VWT-9000 Pressure Transducer piezometers
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:
- Various pressure ranges depending on model
- Operating temperature range of 0 to +70°C
- Frequency range of 1850-3500 Hz
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.
VWPHT-3600 VW High Temperature Piezometers
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:
- Pressure range up to 34.5 MPa
- 3K and 10K thermistor options
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.
Multi-point VW Piezometer Strings
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:
- 345 kPa to 3.5 MPa pressure range
- Operating temperature range -20 to +70°C
- Accuracy of 0.1% FS
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.
SGP-3400 VW Strain Gauge Piezometers
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:
- Different porosities available for the filter tip
- Wide pressure range from 100 to 3,500 kPa
- Accurate to <0.1% FS
- Temperature range from -20 to +80°C
This piezometer adaptable to most conditions. The rugged casing ensures long term durability and accuracy in harsh environments, including saturated soils and fluctuating temperatures. It is available in both standard and vented versions and the filter tip can be changed to suit site specifics.
With precise measurements, durable design and adaptable features, the SGP-3400 Strain Gauge Piezometer supports effective monitoring, risk assessment and compliance.
Standpipe Piezometer
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:
- Tip pore size of 60µ
- 3 x 10-4 m/s tip permeability
- Available in 1m and 3m lengths
- Porous plastic or ceramic element
Promote Safety onsite with piezometeres
For a no obligation quote, fill out your project details here.
Why Monitel’s piezometers last
Reliable measuring ranges and accuracy
Most of our stocked VWPs are available in pressure ranges such as 350 kPa, 700 kPa, 2,000 kPa, and up to 3,500 kPa. Depending on the model, they operate with accuracies of ±0.1% to ±0.5% of full scale.
With various options available, they are suited to both low and high-pressure groundwater monitoring applications.
Waterproof Sealing
All Monitel sensors are fully encapsulated and waterproof to withstand long-term deployment in saturated soils, tailings or submerged boreholes.
See our piezometers in action
We were asked to monitor pore pressure changes during a pre-loading phase at the Alkimos Desalination Plant. Our team opted for a vibrating wire piezometer, installing sensors in multiple locations for a comprehensive picture.
Monitel’s data was crucial in understanding how settlement and moisture interacted within the soil layers, assisting engineers in determining when consolidation was complete. With our help, construction proceeded with confidence, ensuring structural integrity and compliance with regulations.
Salt and Potash Groundwater Monitoring
Environmental regulations mandated continuous monitoring of groundwater to detect potential changes in the surrounding environment. Our deployment of CT2X sensors provided a robust solution for continuous groundwater monitoring with real-time results.
Pricing & delivery
What is the lead time for delivery?
For stocked models, our standard turnaround from order to dispatch is 3-4 business days. Urgent orders can be expedited subject to availability.
If you require a custom cable length, there’s no need to worry – that won’t cause any dispatch delays.
What is the pricing structure?
Fill out your project details for a no obligation quote
Reliable data is the cornerstone of good compliance and risk management. As a leading piezometer supplier,Monitel can find the right piezometer for your project and obligations.
(08) 6219 8284
10 Bermondsey Street
West Leederville, 6007
admin@monitel.com.au
Monday to Friday 7:00am to 5:00pm
Comprehensive, compliance focused systems
Make borehole and tailings assessments simpler and more reliable with our piezometer range.