Shivaji - I really don't have the equipment, actually I don't know what equipment is needed to measure a magnetic field so I really can't answer your question. I will say that while the magnet is really powerful, it is a ferrite magnet so doesn't have the same power as a neodymium magnet, then again, if it were neo, it wouldn't need to be 80 pounds. The magnet is in the middle of the cabinet and so it is a good 12-14" from the sides of the cabinet. On the workbench, if I get a screw too close to the magnet, it will jump to the magnet but that is within 4 inches or so. So while I can't answer your question scientifically like I'd like, I don't think it would be an issue. If you were to buy one and find it actually did interfere with you, I'd pay to have it shipped back and give you a full refund.
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