Microwave Sensors

Microwave sensors are used in both indoor and outdoor applications. Microwave systems work by covering an area with an electric field. Microwave sensors set off an alarm when movement in the zone disturbs the field.

 

Principal Drawback

Microwave sensors operate in the high frequency spectrum (X band). Proximity to other high frequency signals degrade the detection reliability of these sensors. Nuisance alarms may be caused by radio transmitters, electric motors, generators, and fluorescent bulbs.

Other Shortcomings:

  • Component / installation costs
  • Large metal objects such as dumpsters, electrical boxes, or trash cans can create "dead pockets" within the detection zone.
  • Sensors require electricity

Fiber Fence Advantages over Microwave Sensors:

  • Sensors do not require electricity
  • Can be calibrated to eliminate nuisance alarms
  • Immune to EMI - Not affected by radio transmitters, electric motors, fluorescent bulbs, etc.
  • Economical to purchase
  • Easy to install