Seco-Larm SM-216Q/GY Surface-Mount Wide-Gap Magnetic Contact – Gray, 2-3/4″

  • Wide-Gap surface-mount magnetic contacts
  • Screw mount
  • ABS plastic case has integrated mounting holes
  • Contact reed switch is SPST, deactivated rhodium on gold under-plating, for a long life
  • Wide 2-3/4” (70mm) gap for loose-fitting doors and windows