... 4 Detection speed :10-30M / min 5 Detection Thickness (45 # steel) :10-30mm; 6 Maximum lift-off height: 10mm 7 Gain ... -pass: 0hz ~ 2000hz, high-pass: 0hz ~ 2000hzApplicationsApplicable to steel parts, steel billet, round steel. bar, pipe, weld, cable and other testing, as well as ...