This pack contains 10 pieces of model 14103 normally open (N/O) SPST reed switches. Each switch closes its circuit in the presence of a magnetic field and opens when the field is removed. The compact form factor is suitable for compact sensing applications. Key features Configuration: Normally Open (N/O), SPST Model: 14103 Pack size: 10 pieces Actuation: Magnetically activated (requires external magnetic field to close) Size: 2 x 14 mm Specifications (as indicated by the product title) Type: Reed switch Contact configuration: N/O SPST Rating: 1015AT Dimensions: 2 x 14 mm Quantity: 10 pieces What makes it useful Reliable magnetic sensing: Provides a simple, contactbased switch that closes with a magnetic field, ideal for proximity sensing and position detection. Spaceefficient: Small 2 x 14 mm footprint fits into tight enclosures and compact designs. Easy integration: Passive device that can be incorporated into standard circuits requiring a normally open reed switch. Applications and use cases Door and window sensors for security systems: Detect door/window opening by placing a magnet on the moving part and the reed switch on the frame. Proximity and position sensing in automation: Use as a noncontact switch to detect the presence or absence of a magnet in small machinery or enclosure doors. DIY electronics and prototyping: Ideal for hobby projects needing a compact normally open magnetic switch for signal or control circuitry. Package contents 10 x Model 14103 normally open SPST reed switches (N/O) Note: This description reflects the product title specifications and features. No additional details or alterations have been added.