RedFox Sensor Nodes

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1 Deploy

Permanent crack detection & monitoring for steel structures

Page last modified
February 22 2024

RedFox nodes are wireless crack monitoring sensor units that form the core of our services: Remote Inspection, Automated Warning & Predictive Maintenance. RedFox nodes allow asset owners to have the benefits of everyday specialist inspection, without the specialists having to access the actual asset.

Nodes are typically installed at structural details that are of enhanced interest to the asset owner. Because no surface preparation is required (no paint removal), installation of a RedFox node is done within minutes. Directly after installation the RedFox node becomes operational: the structural detail is immediately monitored for initiating or progressing cracks of 1-10 mm on a continuous basis. Data is securely & wirelessly sent for analysis via the cellular network. A RedFox node can operate for at least five years without manual intervention.

Pros & Limitations
No surface preparation: apply our sensor directly on top of painted steel
Limited data profile: intelligent physics interpretation keeps data volume below 15 kB per month
Wireless: no need to bring cables during installation
Very accurate: sub-mm accuracy crack growth measurable
Long battery life: 5-10 years easily possible
Affordable: Price per sensor node is attractive, which makes large scale deployment possible at a fair price
Flexible reporting: quarterly, monthly and weekly reporting frequencies possible
The RedFox sensor provides an affordable way to monitor, but it is a local approach, meaning that you will possibly need multiple sensors in order to safeguard an entire structure
Only applicable on carbon steel structures
Specification Title Specification Description
Areas of Application
Bridges, pipelines, cranes: any steel structure that is susceptible to cracking can be monitored.
Cloud Platform
All sensor nodes operate wirelessly with a low data profile: very easy access to valuable informations
Operating Conditions
Very long battery life, capable of very long monitoring.
Accurately measure crack growth, with sub-mm accuracy.
Can be installed on top of conservation, no paint removal needed.
Competitive pricing allows for large scale deployment at an attractive fee.
5 years minimum guaranteed battery life.


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Development Technology demonstration Mature / Proven
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Villari provides a revolutionary approach for the permanent monitoring of fatigue crack propagation in steel structures using cutting-edge wireless sensor technology

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