Concrete amount measurement

In order to strength the concrete, after certain amount of mixed concrete is placed, it needs to be left for several hours.
So, measuring the amount of concrete by sensor is needed.

Sensor measures the distance to concrete and give an alarm when it reached the set distance.
The concrete itself is normally difficult to be measured by sensors, but our laser distance measurement sensor has a long range 50m, so it enables to measure the distance stably.