A small magnetic reed switch that detects when a magnet is nearby and turns on an electrical circuit, commonly used to sense door and window positions or detect machine movement.

A small flat magnetic switch that triggers when a magnet comes near it, used to detect position or movement in machines and control systems.

A small magnetic switch that detects when something moves near it, commonly used to control doors, gates, and machinery automatically.

A small flat magnetic switch that closes when exposed to a magnetic field, commonly used to detect door and window positions or machinery motion in industrial control systems.