Add-on Wireless Door/Window Sensor (for Air-Alarm series)

Product Condition & Warranty: B-stock unit (refurbished), 30-day warranty
**Fully compatible with Air-Alarm1, Air-Alarm-DL, and Air-AlarmII/IIB
( Sold through our authorized reseller Do not click here for any promotion or clearance sale items )
MSRP: $19.99  
Sale Price: $11.99  

Key Specifications:

  • Magnetic contact sensor
  • Operating power: 23A 12V alkaline battery
  • Wireless Transmitting distance: 450ft (in open area)
  • Service life: up to 2 years
  • Alarm Distance: < 4cm


Product Contents

  • 1 x SM-87B
  • 1 x Manual

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