- 100 pieces of 3x11 mm magnetic reed switches, normally open (NO). Suitable for induction sensing and various switching tasks. - The GPS11A reed switch sensor is sensitive to magnetic fields, enabling reliable detection when a magnet is nearby. - Compact 3x11 mm size enables easy integration into small enclosures, PCBs, and DIY electronics kits. - Simple, low-power operation: a passive switch that draws no current when open and closes the circuit when actuated by a magnet. - Bulk pack is ideal for multiple projects, prototyping, testing, and education, offering a cost-effective supply for DIY kits. - Applications include door/window magnetic sensors for basic security or automation, proximity or position sensing in hobby robotics, and small-scale induction sensing in electronic prototypes. - Compatible with standard reed switch circuits and typical induction-based designs, making it easy to incorporate into new or existing projects.