magnetic fuze

Examples of pieces of ordnance that employ a magnetic fuze include:

The VS-HCT series of mines are Italian plastic cased anti-tank mines that use Misznay Schardin effect warheads and have a dual seismic and magnetic fuze.

The mine is triggered by a magnetic fuze when an appropriate target is detected, detonating the Misznay Schardin effect warhead, which produces a self-forging fragment capable of penetrating up to 80 millimeters of armor.

The second type of torpedo (mentioned as the same type that was used to sink HMS Royal Oak in 1939), was described as having a magnetic fuze designed to detect the deviations in the Earth's magnetic field caused by a ship's metal hull and explode beneath its keel.