50 meters three Beam Perimeter Intrusion Detection Barrier Security Beam Barrier font b Alarm b font
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50 meters three Beam Perimeter Intrusion Detection Barrier Security Beam Barrier Alarm

50 meters three Beam Perimeter Intrusion Detection Barrier/Security Beam Barrier Alarm

80 % of buyers enjoyed this product!
Availability: in stock
Price:  US $45.00 / piece
from AliExpress
45 days Money back 45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery On-time Delivery
Guarantees: On-time Delivery 60 days


50 meters HOME SECURITY IR INFRAREDthree BEAM BARRIER ALARM DETECTOR outdoor and indoor photoelectric beam detector:

The shipping cost listed by the system is only for reference and if you really wanna buy this item, please contact the seller first to check the possible discount for shipping before paying this order. Thank you.

Detector Bracket is not inclued.

We only sell quality product.

Notes: We can deliver the goods to all of the countries in the world; please just contact the seller if the aliexpress system does not support to send the goods to your nationhis is because the system default setup has a limited function.

For delivery express, if the buyer chooses EMS, the seller will send the goods with EMS, DHL or UPS or FEDEX or TNT or ARAMEX according to the situation. For any special requirements, please leave notes for the seller.


  1. Photoelectric IR beam detector with digital frequency conversion
  2. Mout transmitter and receiver, build a fence you can’t see;
  3. When beam is blocked, alarm trigger;
  4. Alarm output NC/NO optional, compatible with other brand burglar alarm systems such as HONEYWELL,DSC,GE and BOSCH;
  5. Resistant to rain, fog, snow and frost;
  6. Built-in automatic adjustable strong light filtering system (up to 50,000 LUX);
  7. Good performance against direct sunlight, completely against fluorescent and car light;
  8. AGC circuit, the detector will automatically increase sensitivity when faced harsh environment;
  9. Easy alignment with visual LED indicator;
  10. PC engineering plastic material;
  11. Professional waterproof design with the rubber seal around;
  12. IP degree: IP65;
  13. Adopt microprocessor control(CPU), real digital circuit;
  14. Horizontal / vertical optical angle can be easy to adjust

Technical data and unique features:

* digital indicator showing the signal intensity

* channel dip switch to ensure no nearby signal inteference; working in a different frequency;


To receive the goods in a short time, please quote the shipping cost of DHL, UPS or Fedex from the seller.

You are always welcome to send us the message online or by email if you have any questions.

Average Star Rating:
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Name Rating Feedback
Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $45.00 / piece
from AliExpress