FD331 

• Single-channel Fiber Defender® APU 
• 5km sensing cable (available separately)
• Sensor cable immune to EMI, RFI, and lightning
• 25+ configuration parameters
• Comes with SpectraView™ Calibration Software for nuisance alarm discrimination 
• Ideal for high-security applications
• Optional anemometer output
• PL1-N Nuclear approved

* FD331-IP for IP-XML communications capability

FD332

• Dual-channel Fiber Defender® APU
• Sensor cable immune to EMI, RFI, and lightning
• 25+ configuration parameters
• Comes with SpectraView™ Calibration Software for nuisance alarm discrimination 
• Designed for high-security applications
• Optional anemometer output

* FD332-IP for IP-XML communications capability

Applications: Industrial sites, tactical military, gated communities and industrial

• Stand-alone
• 1 or 2 zones
• No insensitive lead

Advanced tuning; US military approved to highest rating. Typically deployed near the fence line.