

DIGITAL SOLUTIONS
Inclinometer Casing
Precision-engineered casing for reliable subsurface movement monitoring.
Inclinometer Casing overview
Inclinometer Casing overview
Accurate ground movement monitoring starts with a reliable foundation. RST Instruments' Inclinometer Casing provides a precision-guided access tube for measuring lateral displacement within soil and rock.
Designed for short- and long-term monitoring, it supports inclinometer probe surveys and digital in-place inclinometer systems across a range of geotechnical projects.
With high-accuracy, machined guide grooves, durable ABS construction, and secure coupling options, RST Inclinometer Casing helps deliver consistent measurements and dependable performance in demanding field conditions.
From slope stability to critical infrastructure monitoring, it gives engineers the foundation they need to understand subsurface movement and assess changing ground conditions.
Built for precision and demanding conditions
RST Instruments' Inclinometer Casing is engineered to support accurate measurements from installation through ongoing monitoring. Installed in boreholes, embankments, piles, or concrete structures, the casing guides an inclinometer probe along two orthogonal measurement axes. The carefully machined grooves maintain probe orientation, ensuring reliable readings and reducing errors that arise from casing twist.
Manufactured from virgin ABS resin, the casing offers flexibility, impact resistance at low temperatures, and durability for challenging site environments. Self-aligning couplings provide secure connections designed to resist water and grout ingress.
Available in 70 mm and 85 mm outside diameters, with standard section lengths of 1.5 m and 3.5 m, RST Inclinometer Casing can be adapted to meet a variety of installation requirements.
Why choose Inclinometer Casing?
Why choose Inclinometer Casing?
Inclinometer Casing for geotechnical and infrastructure monitoring
Inclinometer Casing for geotechnical and infrastructure monitoring
Resources
Resources
Explore Inclinometer Casing options
Choose a casing configuration that aligns with your installation depth, borehole dimensions, and monitoring approach.
- 70 mm (2.75 in.) outside diameter: A compact casing option available in 1.5 m and 3 m sections. Suitable for compatible inclinometer probes and monitoring systems.
- 85 mm (3.34 in.) outside diameter: A larger diameter option available in 1.5 m and 3 m sections to accommodate compatible monitoring equipment.
- Connection options: Select from available connection types based on installation requirements and anticipated borehole conditions.
- Telescopic sections: Where ground settlement or vertical movement must be accommodated, compatible telescopic sections can provide additional extension capacity. The listed configurations provide 152 mm (about 5.98 in) of travel.
Specifications and ordering
Specifications and ordering
Inclinometer Casing Specifications
| Item | 70 MM (2.75 IN.) OD | 85 MM (3.34 IN.) OD |
|---|---|---|
| Casing OD (including coupling) | 70 mm (2.75 in.) | 85 mm (3.34 in.) |
| Casing ID | 59 mm (2.32 in.) | 73 mm (2.87 in.) |
| Casing Length | 5 or 10 ft. (1.5 or 3 m) | 5 or 10 ft. (1.5 or 3 m) |
| Casing Weight | 1.27 kg/m (.85 lbs/ft.) | 1.49 kg/m (1.0 lbs/ft.) |
| Material | ABS Plastic | ABS Plastic |
| Groove Spiral | ≤ 0.3 deg./10 ft. | ≤ 0.3 deg./10 ft. |
Glue & Snap Specifications – 70 mm
- Load Test (738 kg (1630 lbs.))
- Collapse Test (17.2 bar (250 psi))
Telescopic Section Specifications
| Item | 70 MM (2.75 IN.) CASING | 85 MM (3.34 IN.) CASING |
|---|---|---|
| Telescopic Section OD | 76.96 mm (3.03 in.) | 91.44 mm (3.6 in.) |
| Compressed Length | 457 mm (18 in.) | 457 mm (18 in.) |
| Extended Length | 609 mm (24 in.) | 609 mm (24 in.) |
| Range | 152 mm (6 in.) | 152 mm (6 in.) |
| Weight | 0.77 kg (1.7 lbs.) | 0.9 kg (2 lbs.) |
Inclinometer Casing FAQs
Inclinometer Casing FAQs
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We are a global leader in geotechnical, geospatial and structural monitoring. We deliver a complete portfolio, from sensors to services, for mining and civil infrastructure customers. Our expertise is grounded in Orica's innovation and technical excellence that span more than 150 years.
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