Crack monitoring without measurement gaps
Our sensors continuously monitor opening, movement, and relative displacement, and trigger an alarm if thresholds are exceeded.
Cracks in concrete and masonry develop over weeks and months. They open up when temperatures change, close again, widen under load, and go unnoticed in the meantime.
Manual crack measurement captures only snapshots. What happens between two inspections remains unknown. In the event of damage, there is no continuous history of movement, and the person responsible for preserving evidence bears the liability risk.
The reference object and sensor are each secured with two screws on either side of the crack or joint. No special tools, no drilling into load-bearing structures, and no need for outside installers. Activation is performed by placing a magnet against the sensor or connecting the battery cable, depending on the sensor model.
As soon as the sensor is active, it transmits all measurement data wirelessly to our data hub. Data is transmitted via LTE-M; the 3D Sensor and 3D Sensor XT also transmit via Wi-Fi. The data appears in the dashboard as soon as it is transmitted, without the need for anyone to be on site.
Our system sends an email notification as soon as a crack exceeds the set threshold. All measurement data is available over time and provides comprehensive documentation for construction monitoring, expert reports, and regulatory agencies.
We have the right sensor for every measurement point and requirement.
The specialist in crack and joint monitoring. It measures relative movement in two axes as well as temperature and transmits all data wirelessly to our data hub.
For cracks and joints that move in three dimensions. It detects absolute positional changes along three spatial axes and transmits all data wirelessly to our data hub.
For long-term crack monitoring in hard-to-reach locations. Measures hourly in three spatial axes throughout the entire project duration, with no maintenance required on the sensor thanks to an external battery box.
Specific differences compared to manual crack measurement.
No cable ducts, no drilling into load-bearing structures, no need for professional installers. The sensor is secured with two screws and begins transmitting as soon as it is activated.
±50 µm repeatability for the 3D Sensor and 3D Sensor XT. ±100 µm for the 2D Sensor. In any case, these are orders of magnitude more accurate than visual or purely mechanical crack measurement.
You define the threshold value for each monitoring point. As soon as that value is exceeded, our system automatically sends an email notification to the designated recipients.
No maintenance is required on the sensor throughout the entire project. Even at measurement points that are accessible only via a boom lift or scaffolding, the sensor continues to measure without interruption.
Selected crack monitoring projects involving the use of our sensors.
Real-time structural monitoring following a tunnel fire to enable rapid reopening during ongoing restoration work.
Wireless 3D measurement of concrete segments in tunnel construction.
Continuous monitoring of structural movements in the historic reception building during the critical construction phase
High-precision building monitoring of settlement and crack development to assess damage caused by subway construction work.
Monitoring of bearing and abutment movements and structure temperature during operation.
“Following a tunnel fire, the 3D sensors from SuessCo Sensors FlexCo were deployed to monitor the affected tunnel arch segments. Continuous monitoring made it possible to maintain temporary operations until final repairs could be completed. As part of the safety management plan, alarm thresholds were defined, and a specific group of people would have been notified via email and SMS if the alarm threshold was reached. The system stands out for its precise measurements and the wireless remote transmission of data to a portal that experts can access at any time without disrupting operations.”
Reinhold Czizsek, Engineer
Asset Management, ASFINAG Bau Management GmbH
“Our collaboration with SuessCo Sensors has always been professional and solution-oriented. For expert assessments, the continuous measurement data from the SuessCo sensors is a major advantage, as changes can be objectively documented and reliably evaluated." "With the XT 3D sensors, we receive precise and stable measurement data wirelessly in three dimensions. This enables reliable remote monitoring of sensitive tunnel areas and significantly reduces our on-site workload."
Mohammed Ismail
Geomatics Engineer, TABERG Engineering and Consulting Firm, LLC
"Thanks to the high-precision sensors from SuessCo Sensors, we have been able to continuously monitor changes in the Palm House. This data helps us protect this wonderful building and its historic structure."
Helmut Heninger, B.S. in Engineering
Austrian Castle Administration
"SuessCo's sensors have proven to be extremely precise and easy to install. What is particularly impressive is that they withstood the extreme conditions of the Swedish winter without any problems. Our collaboration with SuessCo has always been reliable and professional."
Paul Collins
Sales Manager, GEOFIX Sweden
"With the SuessCo 6D sensors, we always have up-to-date measurements available. This naturally saves us money and improves quality."
Georg Gotthart
Plant Technician, Bridge Construction, ÖBB
For cracks that open primarily along two axes, the 2D sensor is the standard solution. For cracks with three-dimensional movement, we recommend the 3D sensor. At hard-to-reach measurement points with long project durations and hourly measurement intervals, the 3D sensor XT is the right choice because the external battery box lasts throughout the entire project period without requiring on-site maintenance.
The 2D sensor achieves a repeatability of ±100 µm in both axes. The 3D sensor and the 3D sensor XT achieve ±50 µm in all three spatial axes. All three sensors also measure temperature with an accuracy of ±0.5 °C, as temperature changes significantly affect motion interpretation.
With a daily measurement interval, the service life for both the 2D sensor and the 3D sensor is ten years. The XT 3D sensor achieves a service life of ten years with an hourly measurement interval, as its external battery box is designed for this purpose. Generally, no battery replacement is necessary during the project period.
The reference object and sensor are each secured with two screws. No special tools, no specialized personnel, and no external installers are required. The 2D sensor and 3D sensor are activated by placing a magnet against them, while the 3D Sensor XT is activated by connecting the battery cable. Setup is complete in just a few minutes.
All measurement values are available in the Datahub as CSV exports, including both raw values and the difference from the zero value. Third-party sensors can be integrated into the same platform via the API, so you have all your project's measurement data in one place.
*(Open): The behavior in the event of a connection failure is not publicly specified. Before publication, confirm whether local buffering occurs in the sensor and for how long.*
