Boost Infrastructure Safety with Continuous Monitoring
Sentra delivers next-generation vibration monitoring solutions designed to ensure infrastructure integrity and operational safety. Our expertise lies in combining precision sensing, edge intelligence, and long-range wireless connectivity to transform vibration data into actionable insights — empowering engineers to make faster, data-driven maintenance decisions.
Vibration Meter
Captures even minor vibrations for accurate assessment
Monitors low- to high-frequency motions
Automatically records vibration peaks
Rugged, weatherproof housing ensures long-term stability
Overview
The Vibration Meter is a wireless, tri-axial sensor built for long-term, continuous vibration monitoring of bridges, tunnels, buildings, and industrial assets. It leverages an exception-based edge algorithm that automatically detects and reports threshold breaches based on Law/PPV and frequency parameters, eliminating the need for manual data retrieval.
What's Included
Practical, deployment-ready components and services that make monitoring useful from day one.
- High-precision 3-axis MEMS accelerometer
- Configurable operational modes
- Extended battery life of up to 1.5 years
- Robust long-range communication
- Raw data storage
- Alert mode
- Monthly Performance Reports
Why Choose Sentra for Structural Health Monitoring?
Practical reasons that matter to infrastructure owners and engineering teams.
Result‑Driven Monitoring
Early detection and prioritized interventions
Engineered Accuracy
High‑fidelity GNSS, tilt, and Vibration sensors
Edge Intelligence
Low‑latency anomaly detection, fewer false positives
Actionable Reporting
Real‑time alerts, and integrations with asset management systems
Main technical specifications
| Sensor type | 3-axis MEMS accelerometer |
|---|---|
| Operation modes | PPV-based and MTVV-based |
| Sampling rate | 1000 Hz derived from a 4 kHz signal |
| Noise floor | 22.5 μg/√Hz |
| Original frequency band | 0.5 – 250 Hz |
| Power source | 1 × 3.6 V D-size replaceable battery |
| Data transmission | LoRa radio communications (ISM sub GHz) |
| Operating temperature | –40°C to +80°C |
| Weather protection | IP68 |
| System configuration | Locally via Worldsensing App or remotely using CMT Edge on sigle-net deployments and CMT Cloud on multi-net deployments |
| PPV-based operation mode specifications | |
| Reported parameters | PPVx,y,z (mm/s), fx,y,z (Hz), T (ºC), PVS (mm/s) |
| Range (velocity) | 0-60 mm/s (±0.01 mm/s) |
| Frequency output range | 1 -100Hz (±0.5 Hz) |
| MTVV-based operation mode specifications | |
| Reported parameters | LAW-x,y,z (dBm, T (ºC) |
| Acceleration range | ±2g |
| LAW range | <100 dB (±0.05 dB) |
| Frequency weighting | Wm |
| Battery life estimations | |
| Reporting period | SF9 / SF11 |
| 10 min | 1.5 years / 11 months |
| 30 min | 2 years / 1.4 years |
Got Questions? We've Got Answers.
It’s a wireless tri-axial sensor for continuous vibration monitoring of structures like bridges, tunnels, railways, and buildings — helping detect vibration events, assess structural health, and ensure safety compliance.
The sensor uses a 3-axis MEMS accelerometer with an edge algorithm that identifies threshold breaches based on Law/PPV and frequency, ensuring only critical vibration data is reported.
It supports LoRaWAN and 4G LTE, enabling long-range, low-power communication — up to 10 km coverage using repeaters, even in underground or remote environments.
With its ultra-low-power design, the replaceable battery lasts up to 1.5 years under normal operation, ensuring reliable long-term deployment.
Yes. It’s fully compatible with Worldsensing’s Loadsensing network, allowing seamless integration with CMT platforms, dashboards, and digital twin systems for real-time visualization and analytics.
It can be installed on bridges, tunnels, buildings, industrial machinery, and construction sites, including underground or hard-to-reach locations, providing continuous vibration insights for diverse infrastructure projects.