Laser Tiltmeter
Precision tilt monitoring with wireless long-range connectivity
The LaserTilt90 delivers accurate, real-time tilt measurements for infrastructure and geotechnical projects. Its laser-assisted auto-leveling simplifies installation, while LoRa wireless connectivity ensures reliable long-range data transmission, making it ideal for remote and unattended monitoring applications.
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Simply enter your contact details and one of our specialists will call you to discuss your requirements and provide a detailed quotation.
Robust Laser-Based Monitoring for Slopes and Infrastructure
The LaserTilt90 combines a laser distance meter, inclinometer, and data logger in a single device, delivering accurate, non-intrusive monitoring of movements, inclinations, and differential settlements. Designed for underground and surface applications, it ensures minimal disruption to tunneling activities while providing reliable long-range communication up to 10 km with repeaters.
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3-in-1 laser distance meter, inclinometer and data logger designed to provide robust data when monitoring inclinations, movements and differential settlements of slopes or infrastructure.
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Field-proven, non-intrusive method for convergence monitoring with minimal interference to tunneling activities.
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Great communication ranges underground, with up to 10 km using repeaters.
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Laser Tiltmeter is compatible with Worldsensing’s single-net and multi-net configurations.
Flexible, Real-Time Monitoring for Tunnels and Structures
The Worldsensing Laser Tiltmeter (LaserTilt90) uses a laser to measure distance to reference points and a tiltmeter to detect vertical deviations in ground or structures.
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Easy relocation
When used in tunneling projects, LaserTilt90 can be moved after the measured relative displacements are stabilized and relocated into the final lining
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Setup wizard
Previous configuration available in the App to quickly configure a set of devices in the same project
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±90° range and 3-axis inclination
measurement for flexible installation options
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Near-real time data
Allows to correlate changes with the excavation phases
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New monitoring applications
Vertical settlement at a tunnel crown by measuring the relative distance and the angle
Laser Tiltmeter technical specifications
The LaserTilt90 combines a high-accuracy laser distance meter with a 3-axis MEMS accelerometer to capture precise tilt and displacement data. Equipped with long-lasting C-size batteries and IP68 protection, it supports reliable LoRa wireless transmission for single-net and multi-net deployments. With configurable reporting intervals, high-resolution measurements, and robust memory for up to 100,000 readings, it ensures accurate, near-real-time monitoring of tunnels, slopes, and structural movements.
General
| Sensor type | 2-in-1 Laser Distance Meter and 3-axis MEMS accelerometer |
| Power source | 2 x 3.6 V C-size replaceable batteries |
| Memory | 100 000 readings including time, distance and 3-axis tiltmeter measurements |
| Data transmission | LoRa radio communications (ISM sub GHz) |
| Operating temperature | -20º C to 60º C |
| Weather protection | IP68 |
| System configuration | Locally via Worldsensing App or remotely using CMT Edge on single-net deployments and CMT Cloud on multi-net deployments |
Laser distance meter
| Sensor | Visible laser class II with 655nm |
| Laser power | 0.75 to 0.95 mW |
| Resolution | 0.1 mm |
| Repeatability (1 sigma) | 0.15 mm |
| Accuracy | ±1 mm at 10 m ±4 mm at 50 m ±16 mm at 150 m |
Tiltmeter
| Sensor | 3-axis MEMS accelerometer |
| Range | ±90º |
| Accuracy (±4º) | ±0.005 |
| Repeatability | <0.0003º |
| Resolution | ±0.0001º |
| Temperature sensor resolution | 0.1ºC |
Battery life estimations
| Reporting period | 20 m distance | 65 m distance |
| 5 min | 1.8 years | 6 months |
| 1 h | 10.2 years | 5.1 years |
| 6 h | 14.3 years | 12 years |
Laser Tiltmeter Mounting Options
The LaserTilt90 offers multiple mounting options to ensure precise positioning in any monitoring scenario. Surface and vertical plates provide secure attachment with anchor rods or magnets, while swivel and adjustable mounts allow fine-tuning of the laser beam and rotation along multiple axes. Dedicated laser targets enable accurate alignment with reference points, making installation fast, reliable, and adaptable to tunnels, slopes, and structural monitoring projects.
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Surface mounting
Using a LS-ACC-IN15-HP plate for horizontal and vertical mounting. Secures with anchor rods or glue and features a threaded hole for a monitoring prism or leveling screw.
Swivel mounting
Using a LS-ACC-LAS-NSB swivel mounting bracket. The swivel mounting bracket allows swivelling around the vertical axis (± 90°) and a minor rotation of the enclosure on the plate (±3°). It can be fixed to a pole with 50 mm U-bolts or anchor rods. Use the LS-ACC-LAS-SB for fixing on a convergence bolt with G 3/8” male thread.
Vertical surface mounting
Using the LS-ACC-IN15-VP mounting plate for vertical mounting. The mounting plate can be easily fixed using anchor rods and magnets.
Adjustable vertical mounting
The LS-ACC-LAS-AP mounting plate for vertical surfaces is suitable for precise aiming of the laser beam. This support allows limited rotation along two axes relative to the reference surface.
Laser target
Target for Laser Nodes rotatable and swivelable 360º (compatible with convergence bolt G 3/8″ male thread, M8 anchor rods and M5 magnets).
Frequently asked questions
View the Laser Tiltmeter in Action
Explore the Laser Tiltmeter through images, highlighting its design, versatile mounting options, and real-world monitoring applications.
Related Images
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