Fiber SenSys Defender 2-Channel Fiber Optic Perimeter Intrusion Detection NEMA For Sale


Fiber SenSys Defender 2-Channel Fiber Optic Perimeter Intrusion Detection NEMA
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Buy Now

Fiber SenSys Defender 2-Channel Fiber Optic Perimeter Intrusion Detection NEMA:
$189.99

Up for sale is a Fiber SenSys Fiber Defender dual-channel Alarm Processing Unit (APU) housed in a sealed, weatherproof NEMA-rated enclosure. This unit was acquired as genuine US Government surplus through a lawful surplus sale and is being resold as-is.

What’s Included:

• Fiber SenSys Fiber Defender APU (black module, Class 1 Laser Output)

• Green TASS interface card (mounted inside enclosure)

• NEMA-rated polycarbonate enclosure with locking latches

• Two front-panel fiber optic connectors labeled Channel A and Channel B


• Cable gland fittings on enclosure base

About This System:

Fiber SenSys is the market-leading manufacturer of fiber optic intrusion detection systems used by the US Military, Department of Defense, nuclear facilities, prisons, substations, and critical infrastructure worldwide. This APU detects physical disturbances (climbing, cutting, vibration) via connected sensing fiber cable (not included). No power or electronics are required in the field — the APU processes signals from passive fiber cable.

Condition: Used, surplus. Shows signs of prior installation/storage. Not tested by seller. Sold as-is for parts, integration, or system restoration. Internal components appear intact and undamaged. The enclosure shows normal wear consistent with government/field use.


Serial/ID: 95038 (marked on enclosure lid)

Ideal For:

• Security system integrators

• Perimeter security professionals

• Military/government contractors

• Fiber optic hobbyists and researchers

• Parts/repair

Shipping: Ships carefully packaged via UPS or FedEx Ground. Buyer pays actual shipping cost.


Thank you for supporting Dan’s Military Surplus And More, a Service Connected Disabled Veteran Owned Small Business.


This item may show signs of long-term storage, handling, or shelf wear. Surplus and vintage items often have small scratches, dings, or imperfections that do not affect normal use unless otherwise noted. Includes everything shown in the photos. Item pictured is the exact item you will receive (or representative of the lot if multiples are available). Please inspect all photos for details.


Please review all photos for exact condition, measurements, and details before purchase. All items are stored in a clean, smoke-free environment. As a veteran-owned small business, we take pride in accurate listings and fast shipping.


All items are sold as-is with no warranties expressed or implied. Returns accepted within 30 days, buyer pays return shipping. If you have any questions, feel free to contact me — I respond within 24 hours and will always do my best to help.


Shipping is via USPS, UPS, or FedEx at my discretion unless stated otherwise. Orders are typically shipped within 24 hours of payment. Locations outside the continental US may require additional charges.

We will gladly combine shipping on multiple items — please feel free to reach out for more information.


Thanks again for supporting my small veteran-owned business — your support truly means a lot.



⚠️ DISCLAIMER: This item is sold as genuine US Government surplus, acquired through a lawful government surplus sale. It is being sold AS-IS with no warranty, expressed or implied. The seller makes no representations regarding functionality, certification status, or fitness for any particular purpose. Buyer assumes all responsibility for compliance with applicable federal, state, and local laws regarding purchase, possession, and use of security equipment. The seller is not responsible for any use or misuse of this equipment after sale. No export to prohibited countries or parties.


Buy Now


Other Related Items:



Related Items:

Fiber SenSys Defender 2-Channel Fiber Optic Perimeter Intrusion Detection NEMA picture

Fiber SenSys Defender 2-Channel Fiber Optic Perimeter Intrusion Detection NEMA

$189.99