Precision Movement Detection for a Safer Tomorrow
Sentra delivers advanced laser-based tilt monitoring systems engineered to capture even the smallest structural or ground movement with exceptional precision. Combining optical sensing, edge intelligence, and long-range communication, our Laser Tiltmeter ensures early event detection — enabling engineers to act before minor shifts become major risks.
Laser Tiltmeter
Delivers sub-millimeter angular accuracy
Uses laser triangulation to track surface
Auto-calibration and reference targeting
Weather-sealed housing and stable optics for harsh outdoor or tunnel environments
Overview
The Laser Tiltmeter (Event Detection) is built for real-time monitoring of structural or geotechnical movement where accuracy and responsiveness are crucial. Using a laser beam and target sensor combination, the system continuously tracks angular displacement to detect both gradual trends and fast-occurring tilt events.
What's Included
Compact, ready-to-deploy hardware and software tools for fast, reliable tilt monitoring
- Laser-based optical tilt sensor with real-time event detection
- CRugged IP68-rated housing with alignment and mounting accessories
- Plug-and-play setup with mobile and web configuration tools
- Long-range LoRa or wired communication options
- Low-power operation for long unattended service life
- Seamless data integration via MQTT, API, or FTP endpoints
- Monthly Performance Reports
Why Choose Sentra for Laser Tilt Monitoring?
Actionable tilt alerts designed for safe, data-driven decisions.
Precision Detection
Sub-milliradian accuracy for structural and geotechnical tilt events
Instant Alerts
Built-in event recognition for rapid response and safety assurance
Low Maintenance
Durable design built to perform for years in extreme environments
Edge Intelligence
Onboard algorithms minimize false positives and redundant data
Main technical specifications
| General | |
|---|---|
| Sensor type | 2-in-1 Laser Distance Meter and 3-axis MEMS accelerometer |
| Power Source | 2 × 3.6 V C-size replaceable batteries |
| Sampling rate | 1000 Hz derived from a 4 kHz signal |
| Memory | 100,000 readings including time, distance, and 3-axis tiltmeter measurements |
| Data Transmission | LoRa radio communication (ISM sub-GHz) |
| Operating Temperature | −20°C to +60°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 650 nm |
| Laser Power | 0.75 to 0.95 mW |
| Resolution | 0.1 mm |
| Repeatability (1σ) | 0.15 mm |
| Accuracy | ±1 mm at 10 m ±4 mm at 50 m ±8 mm at 150 m |
| Tiltmeter | |
| Sensor | 3-axis MEMS accelerometer |
| Range | ±15° |
| Accuracy (±4°) | ±0.005° |
| Repeatability | ±0.0005° |
| Resolution | ±0.0001° |
| Temperature Sensor Resolution | 0.1°C |
| Battery life estimations | |
| Reporting Period | 20 m Distance / 65 m Distance |
| 5 min | 1.8 years / 6 months |
| 1 h | 10.3 years / 5.1 years |
| 6 h | 14.3 years / 9.2 years |
Got Questions? We've Got Answers.
It measures angular changes in structures, slopes, tunnels, and rails, detecting both gradual shifts and sudden tilt events that could signal instability or deformation.
Using a laser reference beam and high-precision sensor, the device continuously measures inclination. Built-in algorithms trigger alerts instantly when movement exceeds configurable thresholds.
The Tiltmeter supports LoRa wireless networks and wired connections, enabling integration with cloud platforms, dashboards, and early-warning systems.
Designed for low-power, unattended operation, the device can run for years depending on reporting frequency and environmental conditions.
Yes — data is provided via standard APIs, MQTT, or FTP, allowing seamless integration into SCADA, IoT dashboards, or asset management systems.
Ideal for bridges, retaining walls, slopes, tunnels, rail tracks, and other critical infrastructure where early detection of tilt events is essential.