How the infrared beam sensor works ?

Compared with the PIR motion sensors, the infrared beam sensor with the advantage of pet-immunity, low-false alarm rate, as well as weatherproof and non-sensitive to changes of temperature. The infrared beam sensors are widely used for the perimeter protection of security from residential to commercial.

How the IR Beam Sensor Works ?

The Infrared beam sensor adopts the active infrared technology. It consists of transmitter and receiver. Transmitter and receiver installed opposite each other. When the infrared beams are interrupted, the detector will set off the alarm. With the reasons of utilizing multi-beams, the detector with the immunity for the pets and small animal.

How the infrared beam sensor works ?

[Explanation: VSE series beam sensor is triple beams IR beam detector, there are three beams between transmitter and receiver, when VSE IR beam is working. When the pet (example: dog, cat, bird) cross the beam sensor, only one or two beams are interrupted, the alarm will not be set off.  When human is moving, it will cross the all three beams simultaneously, and the alarm will be set off immediately.]

Typically active infrared detectors have two beams, three beams, four beams, the distance from 30m to 300m.

How to use the IR beam sensor ?

Generally, most of IR beam sensor are using the hardwired connection method. The IR beam sensor with terminal of power input, N.O. (Normal Open) and N.C. (Normal Close) dry contact output, and Tamper output.

The wire terminal of IR beam sensor

Using the dry contact output, the IR beam sensor can work with driveaway alarms, burglar alarm system, video surveillance system, access control system, automation system...etc.

For connecting to burglar alarm system, please check this article:

When install the infrared beam sensors around your residential, it will create an invisible rectangle fence around your residential. The picture as below:

Infrared Beam Sensor for perimeter protection of home

Please note that majority of infrared beam sensors are powered by DC power or AC power, so that you may need to purchase the AC/DC power adapter or DC power supply, when install them.

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Tags: Alarm Intrusion, IR Beam Sensor