Moisture sensor for structures

The CorroDec 2G monitors moisture and incipient corrosion directly in concrete. Passive, powerless and readable via RFID, designed for structural preservation.

Request a quote Technical data
  • Passive and powerless
  • Moisture and corrosion
  • Functional for decades
CorroDec 2G moisture sensor with metal housing and embedded concrete aggregate, cutout

Why CorroDec 2G

Early detection where corrosion begins

Moisture is the trigger of almost every reinforcement corrosion. The CorroDec 2G measures it where it occurs, inside the component itself, long before anything becomes visible on the surface.

Passive via RFID

The sensor works without its own battery. The reader supplies it wirelessly with power and reads the values in three to five seconds.

No power source in the concrete

Because no battery can run down, the sensor stays functional for the entire service life of the structure.

Moisture and corrosion

The moisture sensor delivers the early indicator, the corrosion sensor confirms the progress of the corrosion front. Often used in combination.

Deep readout possible

Up to 10 cm with the standard reader, up to 45 cm with the advanced reader, with an external antenna up to 100 m depth in the structure.

New construction and existing structures

Embedded during new construction or retrofitted by core drilling in existing structures. Designed for both routes.

Plannable maintenance

Whoever sees the moisture ingress early seals in time and avoids the significantly more expensive repair of damaged components.

Technical data

Specifications at a glance

CorroDec 2G moisture sensor, cutout
Measured quantities
Moisture in concrete, corrosion, temperature
Operating principle
passive RFID sensor, powerless
Readout
wireless via reader, power and data transfer in 3 to 5 seconds
Read range, standard reader
up to 10 cm
Read range, advanced reader
up to 45 cm
With external antenna
up to 100 m depth in the structure
Sensor variants
Corrosion sensor (two-stage wire monitoring and temperature), moisture sensor (conductivity and temperature)
Service life
without battery and without a cable connection, designed for permanent operation in the component
Installation depth
30 cm standard, extendable to 100 m
Minimum concrete cover
15 mm with C20/25, reducible to 10 mm with C40/45
Installation
embedded during new construction or retrofitted by core drilling
Request a quote
CorroDec 2G fixed to the reinforcement, before pouring

Operating principle

How the CorroDec 2G is read out

Unlike the wireless crack sensor, the CorroDec 2G is read out on site with a reader. Because it works passively and without power, it also delivers reliable readings after years in the concrete, which feed into your structural documentation.

  1. 01

    Embedding

    The sensor is embedded in new construction or retrofitted in existing structures by core drilling, with a defined concrete cover.

  2. 02

    Reading out

    The reader supplies the passive sensor wirelessly with power and transfers the readings in three to five seconds.

  3. 03

    Documenting

    Moisture, corrosion status and temperature feed into the structural documentation and maintenance planning.

Mounting

Installed by core drilling

The sensor is set into a core drilling and anchored in the component. This works in new construction as well as in retrofitting of existing structures, without cabling and without mains power.

  • Mounting without intervention in the load-bearing structure
  • Suitable for new construction and retrofitting of existing structures
  • On request, Infrasolute carries out the installation

Simulation

Read wirelessly in 3 to 5 seconds

The reader supplies the passive sensor wirelessly with power and transfers the readings. Simulate a readout: moisture, corrosion status and temperature appear just as they feed into the structural documentation.

CorroDec 2G, measuring point B12 ready

Moisture

3.1 %

dry

Corrosion

Stage 0

inactive

Temperature

14.6 °C

normal

Click "Read sensor" to start the transfer.

Demonstration only

Two variants

Moisture sensor and corrosion sensor

The CorroDec 2G is available in two versions. In practice they are often combined: one delivers the early indicator, the other confirms the progress. The sister variant is the corrosion sensor.

CorroDec 2G moisture sensor, cutout
Early indicator

Moisture sensor

Measures the electrical conductivity and temperature in the concrete and so indicates the moisture ingress.

CorroDec 2G corrosion sensor, cutout
Confirmation

Corrosion sensor

Monitors via two-stage wire monitoring whether the corrosion front has reached a defined depth, complemented by temperature.

Applications

Where moisture and corrosion threaten

Car parks and underground garages Bridges and civil engineering structures Tunnel structures High-rise buildings and facades Water treatment and port facilities

From the monitoring concept to assessment

Moisture monitoring as a complete solution

A sensor alone says little. Only with the right concept, correctly embedded and regularly evaluated, does it become an early warning system. Infrasolute delivers everything from a single source, not separate parts.

  1. 01

    Concept

    We clarify where sensors are placed and which variant makes sense at which location.

    Learn more
  2. 02

    Installation

    On request, we embed the sensors correctly during new construction or by core drilling.

    Learn more
  3. 03

    Maintenance and operation

    We take over the recurring readout and feed the values into the documentation.

    Learn more
  4. 04

    Assessment

    From moisture and corrosion status we derive recommendations for maintenance.

    Learn more

Matching solutions

Part of a monitoring concept

Moisture and corrosion monitoring unfold their value within a well-planned concept.

Moisture and corrosion monitoring

Moisture and corrosion monitoring

Moisture and corrosion monitoring detects capillary moisture and chloride fronts before spalling becomes visible.

To the solution
Concrete monitoring

Concrete monitoring

The sensor is usually part of a concrete monitoring concept tailored to the structure.

To the solution
Corrosion sensor

Corrosion sensor

The sister variant of the CorroDec 2G: proves via two wire levels how far the corrosion front has advanced.

To the solution

Which measuring points does your structure need?

Describe the component and loading to us. We propose the number of sensors and their position in the concrete.

Request a quote All products
Benedikt Seuss Benedikt Seuss

Data platform

All readings on one platform

The sensors transmit their readings wirelessly to the data platform, where they are evaluated, documented and continuously checked against your thresholds.

  • AI-assisted data analysis
  • User-focused reporting
  • Continuous evaluation
  • Warning and alarm thresholds
  • Alerts by email and text message
  • Remote access around the clock
More on monitoring & alerting
Monitoring platform Sample view
Reading history within limits
Warning threshold
  • AI-assisted data analysis Condition within limits
  • User-focused reporting Report ready
  • Alerting Thresholds monitored

Case study

Project example as a PDF

What moisture and corrosion monitoring looks like in a real project: enter your name and email address and we will send you the case study.

FAQ

Frequently asked questions

What is included in the delivery?
The CorroDec 2G is available as a moisture sensor and as a corrosion sensor. The exact scope of delivery depends on the variant and the project, for example the number of sensors and the matching reader. We clarify this as part of the project inquiry and prepare a suitable quotation.
How is the sensor installed?
There are two routes. In new construction, the sensor is positioned on the reinforcement before pouring and embedded in the concrete. In existing structures, retrofitting takes place by core drilling. The minimum concrete cover above the sensor is 15 mm with concrete C20/25 and can be reduced to 10 mm with C40/45.
How does the readout work and how great is the range?
The sensor is passive and powerless. A reader supplies it wirelessly with power and reads the measurement values in three to five seconds. The range is up to 10 cm with the standard reader, up to 45 cm with the advanced reader, and with an external antenna up to 100 m depth in the structure.
How do I access the measurement data?
Unlike the wireless crack sensor, the CorroDec 2G is read out on site with a reader. Because it works passively and without power, it has no battery that can run down, and delivers reliable readings even after years in the concrete. The readout data feeds into your structural documentation.
Why is the price given on request?
The price depends on the variant, the number of sensors and the matching reader. Moisture and corrosion monitoring are usually part of a concrete monitoring concept that we tailor to the structure. That is why we prepare the quotation project by project through the project inquiry.
What is the difference between the moisture sensor and the corrosion sensor?
The moisture sensor measures the electrical conductivity and temperature in the concrete and so indicates the moisture ingress. The corrosion sensor monitors via two-stage wire monitoring whether the corrosion front has reached a certain depth, complemented by the temperature measurement. The two variants are often used in combination.

Project inquiry

Request the CorroDec 2G for your project

Because price and scope of delivery depend on the variant and project, we prepare the quotation project by project. Describe your structure to us, we propose the matching sensors.

+49 6742 8599600 DE +41 41 670 00 11 CH info@infrasolute.com
Project inquiry