Can the magnetic fields of INVIS cause problems?

No adverse effects of the small permanent magnets in the INVIS joining elements have been reported.  These magnets are active only in the very immediate surrounding of the joiner; the magnet field weakens rapidly with increasing distance to the joiner.  Already at a distance of ca. 3 cm, the magnet is almost undetected.

Care must be taken, however, when operating the actuator.  This device generates a strong, rotating magnet field and must be kept away from magnetic data storage media.  If you wear a pace-maker, please refer to the owner’s manual.