... , DC, mixed-type 1. Intelligent magnetic flux leakage testing machine/ MFL2.IDEA-8MFL magnetic flux leakage detector3.AC, DC ... 1dB stepDSP digital filtering: Low-pass: 0hz ~ 2000hz, high-pass: 0hz ~ 2000hzApplications of magnetic flux leakage detectorApplicable to ... , pipe, weld, cable and other testing, as well as nuclear energy, electric power, petrochemical, aerospace, aviation and other departments ...