BlueRock2™ | Concrete Humidity Sensor

What’s New in BlueRock2™

  • Customized measurement intervals, from every few minutes to every several hours
  • Extended battery life, now measures up to two (2) years
  • Easy reports, export in .pdf (and .csv) formats

Product Description

BlueRock2™ is a rugged, waterproof sensor designed to wirelessly monitor the relative humidity (RH) and temperature of concrete from fresh to hardened stages.

The BlueRock2™ sensor is placed in the concrete right before pouring to monitor the temperature and humidity of concrete in-situ. The measurements are continuously recorded in the BlueRock2™ memory and can be accessed at any time during concrete setting and hardening using the BlueRock2™ mobile app for smartphones and tablets.

This continuous monitoring of concrete RH and temperature can be used for quality control and quality assurance (QC/QA). By knowing the level of humidity in concrete, flooring companies can schedule the installation of various floor coverings (such as resilient flooring, epoxy coating, or wood) based on the type of concrete materials.

Unlike the current destructive and time-consuming methods that measure only one data point at the testing time and require drilling a hole in the concrete, BlueRock2™ offers an embedded wireless solution for accurate measurement and monitoring of internal humidity variations in concrete over time.

BlueRock2™ wireless concrete humidity sensor BlueRock2™ overview BlueRock2™ mobile app BlueRock2™ mobile app BlueRock2™ mobile app

remove_circle_outlineadd_circle Applications

Flooring companies rely on BlueRock2™ to monitor the temperature and relative humidity of fresh and hardened concrete in order to monitor:

  • Drying levels in concrete floors
  • Effectiveness of curing conditions
  • Optimization of flooring installation
  • Water penetration in concrete
  • Humidity gradients

remove_circle_outlineadd_circle Features


  • Wireless technology
  • Rugged, waterproof design
  • Continuous measurement and recording of concrete temperature and RH at a wide range of user-selected intervals (ranging from one measurement every few minutes to every several hours)
  • Easy installation and activation (simply tie the wires together)
  • Extended battery life (up to 2 years1)
  • Patents pending


  • Real-time data display of concrete RH and temperature
  • Free Android and iOS apps for smartphones and tablets
  • Interactive history trend plotting of temperature and RH
  • Easy data organization among different embedded sensors
  • Easy data sharing of the most updated sensor data
  • Full report generation in csv and pdf formats

1Operating at room temperature with periodical connections to the sensor.

remove_circle_outlineadd_circle Technical Specifications


Reading RangeAccuracyWireless Signal RangeDimensions
Temperature: -30 to +60 °C (-22 to +140 °F)±1 °C
Relative Humidity: 0 ~ 100 %20 to 80%, ±2%
<20% or >80%, ±3%
Hysteresis ±1%
Up to 6-8 meters
(20-26 feet)
39 x 39 x 20 mm
(1.5 x 1.5 x 0.7 inches)
1 Accuracies are tested at Outgoing Quality Control at 25°C and 3.0V. Values exclude hysteresis and long term drift and are applicable to non-condensing environments only.
2 The wireless communication range is reduced as the sensor is embedded deeper in the concrete. The maximum recommended concrete depth for embedding the sensor in the field is 5 cm. At this depth, the user can communicate with the sensor within a couple of meters.
3 Normal operating range: 0-80%RH, beyond this limit sensor may read a reversible offset with slow kinetics (+3%RH after 60h at humidity >80%RH).
Note: Specifications are subject to change without notice.

remove_circle_outlineadd_circle Purchase Items

Part No.ItemDescription
900068BlueRock2™ sensorTemperature and relative humidity temperature for monitoring fresh concrete in real-time.

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