Switch clasp

A switch clasp comprising:

• a first part having a first fastening structure adapted to secure the first part to a first item;
• a second part having a second fastening structure adapted to secure the second part to a second item, the second part having a set of zip teeth and the first part having a complementary set of zip teeth that engage with the set of zip teeth;
• a zipper having the complementary set of zip teeth attached to the first part, the set of zip teeth attached to the second part, and a zip pull tab including a magnet and being configured to connect the complementary set of zip teeth to the set of zip teeth to close the zipper when the zip pull tab is moved from a first end of the zipper to a second end of the zipper and configured to disconnect the complementary set of zip teeth to the set of zip teeth to open the zipper when the zip pull tab is moved from the second end of the zipper to the first end of the zipper;
• and
• at least one sensor attached to at least one of the first item and the second item and located proximate to the first end or the second end;
• wherein the at least one sensor generates at least one output signal in response to the magnet of the zip pull tab passing proximate to the at least one sensor.