Wireless Concrete Sensor for Temperature and Strength Monitoring
Giatec SmartRock 3
Overview The SmartRock 3 is a compact and rugged wireless concrete sensor. It is installed on rebar with a maximum of 50mm concrete cover, and via Bluetooth, allows real-time temperature monitoring via the Giatec SmartRock App (the full version is free and available for both Apple and Android smartphones).
If you want to use the SmartRock3 to interpolate the strength of the concrete in real time, (as opposed to only measuring temperature) the concrete mix being used has to be tested in order to calibrate the SmartRock. This only has to be done once, but it has to be done for each concrete mix design. The maturity method is how real time strength is calculated (as opposed to crushing cylinders).
If you have used the SmartRock 2 (previous iteration), the SmartRock 3 has several key improvements. The SmartRock 3 has a temperature sensor both in the SmartRock "black box" and also in the tail (so you get two temperature readings per sensor). The installation system has also been improved - instead of two installation wires, there is a robust new system to attach the sensor to the rebar. The wireless signal has also been strengthened up to a 12 metre range.
When you receive your SmartRock3, the tail will be secured in the socket highlighted by the orange arrow above. To activate the battery, you remove the tail from the socket. When you "tag" your sensor, you would remove the tail, identify that sensor through your smartphone, and you would then replace the tail in the socket to conserve the battery if you are not also installing the sensor at that time. The battery life is approximately four months.