IDEC Corporation Proximity Sensors - Industrial DPRI-01

The DPRI magnetic proximity switch incorporates a sealed reed swtich and four magnets inside a compact housing. This self-contained proximity switch requires no external power supply and can detect the presence of magnetic objects without contact.
Features:

• Lightweight, compact design reduces mounting space requirenments
  
• Compact size allows units to be mounted in close proximity ot each other
  
• Sealed reed contact can be used in dusty locations
  
• Long life and high reliability