Infrared Thermographic Scan can detect leak spots which are invisible by sight inspection. Microwave Moisture Meter is capable to identify the exact location of leak spots at a depth of 7 cm in the concrete. It also serves as the expert witness for leakage and defects survey. Salinity Meter can precisely measure salt even in a drop of water so as to differentiate if the leakage originates from potable water or sea water.