ASCC makes three major points in their position statement. 1) MVER cannot determine concrete quality. 2) MVER cannot determine concrete permeability and 3) does not measure a property of the entire concrete slab.
Building Forensics International provides concrete moisture testing expert consultants who examine the full scope of why is there moisture in the concrete and where is the source of the moisture and finally what are the ramifications. BFI encourages you to take the time to read the above mentioned position statement # 26 by ASCC.
If you are looking for a concrete moisture testing expert consultant please consider Building Forensics International.