NDT Instruments (non destructive testing) are accessible in different specifications to choose from. Housing of these testing apparatus is made of durable ABS material. Accessible in 60 mm to 80 mm width range and 5 inch to 15 inch size range, these digital instruments have real time hardware sampling arrangement. AD converter of these NDT Instruments has high sampling speed. These instruments support radio frequency based/ positive and negative half wave/full wave detection technology. USB2.0 working interface of these products endure about their high speed data transmission. Application of such non destructive testing instruments can be noticed in highway and bridge maintenance works.