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Quad System Detector

Quad beam detector

Of the latest developments in outdoor security technologies, the quad beam detector has been one of the most successful. These have a quad lens set up between a transmitter and a receiver communicating via pulsed AIR Beams, as compared to the dual lens set up of previous detection systems. This very design nature of a quad beam detector can significantly help reduce false alarms. In addition, these detection systems offer double modulation beams that differ in pulse patterns, which in turn helps enhance signal discrimination against potential noise interference such as sunlight or other external light sources.

One of the best innovations in intrusion detectors, the multifaceted setup of quad beam detectors provide an almost fool proof level of defense for all kinds of properties, be it commercial, industrial or even residential.


The quad beam detector can be used in a number of mounted detection systems. Though it is one of the most effective solutions for rugged, industrial installations with its features of restricted false alarm ratio and high uptime of system, it works well in commercial and residential areas as well.

No headaches of false alarms.

Traditional alarm systems generally employ a dual beam installation which can actually lead to a number of false alarms, caused by animals and birds as well. It does cause a bit of inconvenience to have to check up on your alarm time and again just to discover that the intruder was a bird or a pet. To deal with this very menace, the quad beam employed in our alarm systems offer double modulation beams and require all four beams to be blocked simultaneously in order to trigger an alarm, thereby significantly reducing the false alarm ratio.


Intrusions and break-ins might not be affecting you at present but they are a very present and real threat. To deal with such possibilities, it is always a good idea to make sure that you are well protected. Optex intrusion detection systems use quad beam detectors in their installations. With a fair reduction in false alarms, these detectors have a Sniper Viewfinder which provides a high level of visibility for optical alignment work as well.

Dual and Quad beam detectors

Earlier it was the dual beam detector that had been monopolizing the detection systems, but with the introduction of their improved version, i.e. the quad beam detector, the use of dual beams has decreased. What you need to know about the two different types of detection technologies is listed below:


  • Both work on Active Infra Red Technology.
  • Both use a pair of Transmitter and Receiver.
  • Pulse Modulated AIR Beam is sent from the transmitter unit towards the receiver unit.
  • The receiver unit has to receive an optimum amount of beam energy in order to continue communication.
  • All beams need to be blocked completely in order to trigger and alarm from a Pair of Beam Detector.
  • Beam Detectors have a very selective and precise scanning area.
  • They need a clear line of sight between the transmitter and receiver pair.

And the Difference that matters

The dual beam detector has a twin lens setup between a transmitter and a receiver communicating via pulsed AIR Beams while the quad beam has a Quad Lens setup, thereby making it superior in every respect.

About Us

Traditional security systems detect and alert after an intruder gets inside whereas an Optex device detects the intruder when he is trying to get inside the facility, saving you from some unnecessary property damage. Optex, a global leader in sensor technology, manufactures and markets indoor and outdoor passive and active infrared security sensors throughout the world has teamed up with the high skilled market intelligence gathering by Pinnacle to form Optex Pinnacle India to provide the people with the best in class security systems.