1.application: multipolar magnet ring 2.testing range: 1000Gs, 2000Gs, 4000Gs and 8000Gs 3.probe sensitive area: ... ultra difference alarm function. Technical index:1. the magnetic field testing range: 1000Gs, 2000Gs, 4000Gs and 8000Gs four ranges, magnetic ... than 0.06mm, platform vibration: less than 0.03mm3. magnet ring testing surface: outer surface, inner surface and end face, measring small ...