The DS-K4H250S Single-door magnetic lock is designed for wooden door, glass door, and stee... Hikvision DS-K4H250D double-door magnetic lock The DS-K4H250D Double-door magnetic lock is designed for ...
The DS-K4H250S Single-door magnetic lock is designed for wooden door, glass door, and stee... Hikvision DS-K4T108-U1 Value Series Bolt Electric Lock Bracket U-bracket of Electric Bolt, for Using with ...
The video shows a demonstration of how the mass of a magnet can be used to phase lock it against a rotating field. In essence, the magnet will want to rotate to align with the rotating magnetic ...
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